Inorganic Chemistry Communications (v.68, #C)

Contens List (iii-viii).

Synthesis and crystal structure of mer-nitroaquatriamminenitrosylruthenium(II) nitrate [RuNO(NH3)3(NO2)(H2O)](NO3)2 by Vasily Vorobyev; Evgeniy V. Kabin; Vyacheslav A. Emelyanov; Iraida A. Baidina; Ilya V. Korolkov (1-3).
The reaction between mer-[RuNO(NH3)3(NO2)(OH)]Cl·0.5H2O and an excess of 16 M HNO3 leads to the protonation of the starting complex and crystallization of the complex with a coordinated water molecule and nitrite anion. The crystal structure of the product has been determined. The coordinated water molecule tends to be a weak acid with a measured pKa of 2.4.In the Graphical Abstract is shown structure of the studied mer-[RuNO(NH3)3(NO2)(H2O)]2 + cation and the light inducted transformation from the oxygen bonded nitrosyl to the nitrogen bonded nitrosyl.Display Omitted
Keywords: Ruthenium; Nitrosyl; Photoactivity; Aqua complex; Nitro complex; Metastable states;

Two new polyoxometalate-based metal-organic complexes constructed from two in-situ transformed ligands through different ways by Xiuli Wang; Xing Rong; Hongyan Lin; Danna Liu; Xiang Wang; Guocheng Liu (4-8).
Two new Keggin-type polyoxometalates-based metal–organic complexes: [Ag3(L1)3(PMo12O40)]·3H2O (1) and Ag4(L2)2(HL2)(PW12O40)Na2(μ-OH)]·1.5H2O (2) (L1 = 1.2.4-triazole, HL2 = 4-amino-1,2,4-triazole) have been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction analyses, IR spectra and powder X-ray diffraction analyses. In compound 1, the [Ag6(L1)6] crown-shaped ring was clamped by two [PMo12O40]3 − polyanions, forming a sandwich-like [Ag6(L1)6(PMo12O40)2] unit, which was extended to a 1D supramolecular chain through hydrogen bonding interaction. Compound 2 is a 3D metal–organic framework containing the [Ag6(L2)4(HL2)2] crown-shaped ring and 1D [Na2(PW12O40)(μ-OH)]n inorganic chains, which represents a novel (3,3,4,6,10-c)-connected 3D topological framework. The L1 and L2 ligands were in-situ transformed from two different N-heterocyclic amide ligands through different ways, respectively. In addition, the electrocatalytic and photocatalytic activities of the title compounds have been studied.Two polyoxometalate-based metal-organic complexes with different structures have been hydrothermally synthesized by using two in-situ transformed triazole-based ligands through different ways. In 1, the formation of L1 is due to N―N bond cleavage of amino triazole instead of the amide bond, which has never been observed in metal-organic complexes. Compound 2 shows an unprecedented (3,3,4,6,10-c)-connected 3D topology framework.Display Omitted
Keywords: Keggin-type polyoxometalate; Metal-organic complex; In-situ ligand transformation; Electrocatalysis; Photocatalysis;

New Meso-ortho-hydroxy-decorating Fluorescent ON-OFF Bodipy sensor to Cu2 + by Yuting Chen; Kang Wang; Jianzhuang Jiang (9-12).
A new meso-ortho-hydroxy-modifying Bodipy compound ( o-OH-Bodipy) has been designed and synthesized. Single crystal X-ray diffraction analysis reveals the slight lean of the meso-phenyl moiety to the o-OH side due to the effect of the o-OH substituent. Systematic optical studies indicate that introduction of the o-OH group onto the meso-phenyl moiety of this compound induces an increased binding affinity and in particular an obvious fluorescence quenching response to Cu2 + on the basis of the photo-induced electronic transition process, endowing o-OH-Bodipy a great potential as highly sensitive fluorescence ON―OFF detector for Cu2 + even in the acidic condition.A new meso-ortho-hydroxy-modifying Bodipy derivative has been developed. Introduction of the o-OH group onto the meso-phenyl moiety of this compound induces an increase in both selectivity and sensitivity to Cu2 + over all other tested metal ions, rendering o-OH-Bodipy a highly detecting potential towards Cu2 + even in the acidic condition.Display Omitted
Keywords: Bodipy; Ortho-hydroxy group; Cu2 +;  Fluorescence quenching;

The reaction of trans-[ReOCl3(PPh3)2] with 1-(1,3-benzothiazol-2-yl)-3-benzoylthiourea (Hbbt) in methanol led to the isolation of the complex [ReOCl2(cbt)(PPh3)] (1). It contains the monoanionic bidentate chelate N-((benzothiazol-2-ylamino)methylene)benzamide (cbt). The new ligand cbt is coordinated via a neutral ketonic oxygen and an anionic imino-acyl carbon atom, and was formed by the abstraction of the thionyl sulfur of Hbbt by a triphenylphosphine of the starting complex, with S = PPh3 also been formed as by-product. Compound 1 was characterized by elemental analysis, FTIR, proton NMR and single crystal X-ray diffraction.The reaction of trans-[ReOCl3(PPh3)2] with 1-(1,3-benzothiazol-2-yl)-3-benzoylthiourea (Hbbt) in methanol led to the isolation of the complex [ReOCl2(cbt)(PPh3)], which contains the monoanionic bidentate chelate N-((benzothiazol-2-ylamino)methylene)benzamide (cbt). The new ligand cbt is coordinated via a neutral ketonic oxygen and a charged imino-acyl carbon atom, and was formed by the abstraction of the thionyl sulfur of Hbbt by a triphenylphosphine of the starting complex, with S = PPh3 also been formed as by-product.Display Omitted
Keywords: Oxorhenium(V); Benzothiazole; Metal-carbon σ bond; X-ray crystal structure;

Assembly of a 3D chiral Cu(I) metal–organic framework based on 4,5-dicyanoimidazole: CD spectrum, luminescence and selective gas adsorption by Tuo-Ping Hu; Xiao-Xiao Wang; Bao-Hua Zheng; Xiao-Qing Wang; Xue-Na Hao; Jian-Feng Liu (17-20).
One chiral Cu(I) metal–organic framework {[Cu(DCI)]·0.1Cyc·0.45Nbenz}n (1) (HDCI = 4,5-dicyanoimidazole, Cyc = cyclohexanol, Nbenz = nitrobenzene), was obtained under solvothermal condition. Complex 1 presents a 3D chiral porous framework with 38.2% porosity. The 3D metal–organic framework can be regarded as a PtS net with the vertex symbol of {42.84}. The gas adsorption/desorption experiments of complex 1 have been measured at 77 K. Moreover, the CD spectrum and photoluminescent behavior of complex 1 have been studied.Display Omitted
Keywords: Metal–organic framework; Chiral; Gas adsorption; Photoluminescent;

Four mixed-ligand silver(I) coordination polymers (CPs) {Ag2(tpyz)(L)}_n (1), {Ag4(tpyz)2(L)2}_n (2), {Ag2(mpyz)(L)}_n (3) as well as its isomer (4), (tpyz-2,3,5-trimethylpyrazine, mpyz = 2,3,5,6-tetramethylpyrazine, H2L = (+)-camphoric acid), were synthesized with reactions of L and pyrazine derivatives with silver nitrate in different solvent systems. Systematic characterizations with single-crystal X-ray diffraction indicate that, 1 and 3 show a 3D framework which constructed by silver(I) and L anion, the pyrazine derivatives only give one N to connect to metal, which may be due to the disorder of the methyl which shares the same carbon with carboxylate; 2 and 4 demonstrate a 2D 4  4–sql network. The difference between two: one structure is single layer and the other is double layer. Furthermore, 4 contains a 1D helical chains which connected by Ag(I) and mpyz ligand. Meanwhile, the L anion exhibits different coordination modes in 14. 14 spanning from two-dimensional network to three-dimensional framework suggest that the kinds of pyrazine derivatives and solvents play significant roles in the formation of such coordination architectures. The thermogravimetric analyses (TGA), IR, and photoluminescence were also measured.Four different novel structures were synthesized based on silver salt and mixtures of pyrazine derivatives and (+)-camphoric acid.Display Omitted
Keywords: Silver complexes; Ag ⋯ Ag interaction; Crystal structure; Photoluminescence;

A new Li(I)-based metal–organic framework (MOF), namely {(Me2NH2)2[Li(NTB)](H2O)3(DMF)2}n (1, NTB = 4.4′,4″-nitrilotrisbenzoate; DMF =  N,N-dimethylformamide), has been successfully achieved by solvothermal reaction of a C3-symmetric tricarboxytriphenylamine based ligand and Li(I) ion. The resulting framework features a binuclear Li(I) secondary building unit (SBU) and a rare 3.6-connected ant topology. Luminescence properties of 1 towards different metal ions and solvents have also been investigated systematically, with emission intensities significantly quenched towards Fe(III) ion and nitrobenzene (NB). The quenching mechanism has also been investigated in detail.A versatile Li(I)-based metal–organic framework with a rare 3.6-connected ant topology has been constructed by employing a C3-symmetric 4.4′,4″-nitrilotrisbenzoic acid, which exhibits relatively high luminescence selective detection for toxic nitrobenzene and Fe(III) ion in solution.Display Omitted
Keywords: Li-MOF; Binuclear SBU; Luminescence properties; Fluorescent detection;

Although TTF coordination complexes with transition metals have been extensively studied, coordination chemistry of p-block metal ions with TTF ligands remains largely unexplored. In this study, two Pb(II) complexes of 2,6-bis(4′-pyridyl)tetrathiafulvalene (py-TTF-py) with co-coordinated 9-anthracenecarboxylate (AC), formulated as [Pb(AC)2(py-TTF-py)2] (1), {[Pb(AC)2(py-TTF-py)0.5]·CH3CN} n (2), and a transition metal Cd(II) compound [Cd(AC)2(py-TTF-py)2] n (3) for comparison are characterized by single-crystal X-ray diffraction. Compound 1 is a monomer and 3 is a 1-D compound. Compound 2 is a 2-D coordination polymer with planar mesh-like structure. They are metal linked electron donor and fluorescent acceptor system. Traced by the intensity of fluorescence quenching of AC ligand, it was found that Pb(II) ion is a good intermediary for ligand-to-ligand charge-transfer in this system.Two Pb(II) complexes with py-TTF-py ligand are solvothermal synthesized to study the properties of TTF main-group metal complexes. It was found that Pb(II) ion is a good intermediary for ligand-to-ligand charge-transfer.Display Omitted
Keywords: Tetrathiafulvalene; Lead complexes; Fluorescence quenching; Coordination assembly; Charge-transfer;

Synthesis and characterizations of a paddlewheel-type dirhodium-based photoactive porous metal-organic framework by Yusuke Kataoka; Konomi S. Kataoka; Hidenobu Murata; Makoto Handa; Wasuke Mori; Tatsuya Kawamoto (37-41).
A paddlewheel-type dirhodium-based, photoactive, porous metal-organic framework, [Rh2(ZnTCPP)(H2O)7.5] ([1]; ZnTCPP = zinc tetra(4-carboxyphenyl)porphyrin), was prepared and characterized via synchrotron X-ray analyses (X-ray powder diffraction, extended X-ray absorption fine structure, and X-ray absorption near-edge structure), elemental analysis, infrared spectroscopy, and N2 gas adsorption isotherm analysis. Spectroscopic study revealed a drastic decrease in the emission intensity of [1] compared with [ZnTCPP], although features present in the absorption spectra of the two complexes were almost the same. This indicated that [1] underwent the photo-induced intramolecular charge transfer and/or energy transfer from the ZnTCPP moiety to dirhodium moiety.A photoactive two-dimensional metal-organic framework constructed from paddlewheel-type dirhodium unit and zinc tetrakis(4-carboxyphenyl)porphyrin was synthesized and characterized via synchrotron X-ray analyses.Display Omitted
Keywords: Coordination polymer; Rhodium complex; Paddlewheel-type complex;

Two isomorphic hybrids M(en)3Ag2I4 (M = Zn and Ni) showing distinct dielectric feature by Yu Wu; Chen Xue; Zheng-Fang Tian; Hong-Bin Luo; Xiao-Ming Ren (42-44).
In this paper, the dielectric spectroscopy was studied for two isomorphic hybrids, Zn(en)3Ag2I4 and Ni(en)3Ag2I4. Two hybrids show temperature-independent dielectric permittivity and loss with εʹ ≈ 6.7 and εʺ ≈ 0.03 at temperatures below 200 K for Zn(en)3Ag2I4 versus εʹ ≈ 1.24 and εʺ ≈ 0.01 at temperatures below 250 K for Ni(en)3Ag2I4, as well as a dielectric anomaly and thermally assisted dielectric relaxation at elevated temperature. The anomaly peak temperature is ca. 300 K for Zn(en)3Ag2I4 versus ca. 380 K for Ni(en)3Ag2I4 in εʹ-T plots. Additionally, the εʹ value is < 2.6 at temperature below 360 K for Ni(en)3Ag2I4, which is a low-κ material. The dielectric property distinction between two hybrids results from their different structural rigidity.Inorganic–organic hybrids, Zn(en)3Ag2I4 and Ni(en)3Ag2I4, with three-dimensional {Ag2I4 2 −} open-framework show low-κ in low temperature regime, while dielectric anomaly and relaxation at elevated temperature.Display Omitted
Keywords: Inorganic–organic hybrid; Low-κ; Dielectric anomaly; Dielectric relaxation;

A novel 3D Cd(II) MOF, {[Cd(Ccbp)(4.4′-bpy)·H2O]·(ClO4 )·2H2O} (1), (Ccbp  = 3-carboxy-1-(4-carboxybenzyl)pyridin-1-ium, 4.4′-bpy = 4.4′-bipyridine), has been successfully synthesized and characterized. Complex 1 possesses a 3D 4-fold interpenetrating dia network with a pyridine cation basic skeleton. This Cd-MOF 1 can be applied as the first potential dual-functional luminescent sensing material for high selective and recyclable sensing of 2,4,6-trinitrophenol and quantitatively detecting the ultralow temperature from 10 to 60 K.A novel luminescent Cd(II) metal-organic framework with 3D 4-fold interpenetrating dia network has been successfully synthesized and characterized. This Cd-MOF 1 can be applied as the first potential dual-functional luminescent sensing material for high selective and recyclable sensing of 2,4,6-trinitrophenol and quantitatively detecting the ultralow temperature from 10 to 60 K.Display Omitted
Keywords: Chemosensor; Luminescent thermometer; Dual-function; 2,4,6-Trinitrophenol; Sensor; Metal-organic framework;

Two Keggin compounds constructed from tri −/tetra-nuclear Cu clusters linked mono copper(II)-substituted phosphomolybdates by Aixiang Tian; Huaiping Ni; Yan Tian; Xuebin Ji; Guocheng Liu; Jun Ying (50-55).
Two new compounds based on mono copper(II)-substituted phosphomolybdate, [Cu4(tea)6(H4PMo11CuO39)(PMo12O40)]2·33H2O (1) and [Cu3(tea)6(H2O)2(H2PMo11CuO39)2]2·30H2O (2) (tea = 2- [1,2,4]triazol-4-yl-ethylamine), have been synthesized under hydrothermal conditions. Compound 1 owns tetra-nuclear clusters [Cu4(tea)6], linking a pair mono copper(II)-substituted and saturated Keggin anions to form a 2D structure. Compound 2 contains tri-nuclear clusters [Cu3(tea)6], fusing four mono copper(II)-substituted anions to construct a discrete four-membered cycle structure.By adjusting pH, two new compounds [Cu4(tea)6(H4PMo11CuO39)(PMo12O40)]2·33H2O (1) and [Cu3(tea)6(H2O)2(H2PMo11CuO39)2]2·30H2O (2) were obtained from the same synthetic system. Compound 1 owns an anionic dimmer containing a mono-substituted PMo11Cu and a saturated PMo12. Tetra-nuclear CuI clusters link the anionic dimmers to form a 2D network. In compound 2, the mono-substituted anions are linked by tri-nuclear CuII clusters to form a four-membered cycle structure.Display Omitted
Keywords: Mono-substituted polyoxometalates; Multi-nuclear copper cluster; Photocatalytic property; Electrochemical property;

Tetrazole-viologen based metal complex: Photochromism and reversible fluorescence modulation by Ya-Ping Zhao; Yan Li; Shuai-Hua Wang; Jian-Gang Xu; Yong Yan; Fa-Kun Zheng; Guo-Cong Guo (56-59).
By UV–Vis spectroscopy, ESR study, X-ray photoelectron spectroscopy and theoretical calculation, a newly synthesized tetrazole-viologen based zinc(II) coordination compound, [ZnCl2(3-TzV)(H2O)] (3-TzV =  N-(3-tetrazylbenzyl)-4,4′-bipyridinium), was found to exhibit electron-transfer photochromism. In addition to the commonly observed decrease in fluorescence intensity, the fluorescence color changes from green to blue during the coloration, and this change is reversible by altering UV–Vis irradiation and heating for at least seven cycles. The unprecedented photoswitching of fluorescence color for viologen-based photochromic compounds offers a good candidate for multicolor emitting display.A new tetrazole-viologen based metal complex [ZnCl2(3-TzV)(H2O)] 1 (3-TzV =  N-(3-tetrazylbenzyl)-4,4′-bipyridinium) has been hydrothermally synthesized, which exhibits reversible electron-transfer photochromism by alternating UV–Vis light irradiation and heating. Reversible fluorescence intensity and color modulation have also been realized during the photochromic process.Display Omitted
Keywords: Tetrazole-viologen compound; Zinc(II) complex; Photochromism; Fluorescence modulation;

A microporous cobalt-organic framework constructed from mixed tripodal ligands for high CO2 adsorption capacity by Lei Zhang; Wenbin Yang; Xiao-Yuan Wu; Guan-Hua Zhang; Can-Zhong Lu; Wen-Zhe Chen (60-62).
A novel three-dimensional cobalt-organic framework [(Me2NH2)Co33-OH)(tpt)(btb)2]·guest (1) (tpt = 2.4.6-tri(4-pyridinyl)-1,3,5-triazine, H3btb = 4.4ʹ,4-benzene-1,3,5-triyl-tribenzoate) has been obtained by employing mixed tripodal ligands tpt and H3btb under solvothermal reaction condition. Topological analysis reveals that the whole framework structure of 1 possesses a two-fold interpenetrated 3,6-connected sit topology. Remarkably, the desolvated sample 1a shows a high CO2 uptake of 89.5 cm3  g− 1 (17.6 wt%) at 273 K and 1.0 bar, which is attributed to open metal sites and rich N donors of 1a.A three dimensional (3D) mixed-ligand cobalt-organic framework possesses a two-fold interpenetrated 3,6-connected sit topology and shows extremely high CO2 adsorption capacity.Display Omitted
Keywords: Microporous metal-organic framework; CO2 uptake; Mixed ligand; Topology;

A dimeric tetranuclear carbonate-bridged Cu(II) complex [Cu4(DPA- i Bu)42-CO3)2(MeOH)2]4 + 1 was prepared in-situ through oxidation of Cu(I) species by controlling the concentration of O2 in CO2. Lower concentration of O2 led to the formation of 1 after CO2 fixation but higher would give product as bis-μ2-hydroxo complex [Cu(DPA- i Bu)(OH)]2 2 + 2, which was found to be an intermediate to generate trinuclear carbonated complex [Cu3(DPA- i Bu)33-CO3)(MeCN)2(H2O)]4 + 3. The mechanism of this reaction was proposed and the nucleophilic attack of μ-peroxo Cu(II) species to CO2 molecules was suggested to be responsible for the generation of 1.A dimeric tetranuclear carbonate-bridged Cu(II) complex [Cu4(DPA- i Bu)42-CO3)2(MeOH)2]4 + 1 was prepared in-situ through oxidation of Cu(I) species by controlling the concentration of O2 in CO2.Display Omitted
Keywords: Tetranuclear; Carbonate-bridged; Copper complex; CO2 fixation; Mechanism;

Synthesis, crystal structure, luminescence and thermal behavior of a new energetic zinc(II) compound by Qiu Yan Yue; Yi Ming Lu; Fan Xin Chuan; Ding Yuan; Dian Yu Chen; Gao Wen Yang; Qiao-Yun Li (68-71).
An energetic material [Zn2(btzphda)2(H2O)4(dpp)2]·2DMF·4H2O with high decomposition enthalpy of − 748.35 J/g was prepared by the reaction of H2btzphda, dpp and Zn(NO3)2·6H2O under solvothermal conditions, where btzphda = 1,4-bis(tetrazol-5-yl)benzene-N2,N2′-diacetato, dpp = 1.3-di(4-pyridyl)propane and DMF =  N,N′-dimethylformamide. The luminescence properties of H2btzphda and [Zn2(btzphda)2(H2O)4(dpp)2]·2DMF·4H2O were investigated at room temperature in the solid state (Hitachi F4600 spectrofluorometer). Furthermore, the thermal decomposition behavior of the compound is characterized by differential scanning calorimetry (DSC) and thermogravimetric-differential thermogravimetric (TG-DTG) analyses. The entropy of activation (ΔH), enthalpy of activation (ΔS) and the free energy of activation (ΔG) for the decomposition temperature were ΔH = 250.64 kJ/mol, ΔS = 222.75 J·mol− 1·K− 1 and ΔG = 134.10 kJ/mol.Binuclear [Zn2(btzphda)2(H2O)4(dpp)2]·2DMF·4H2O with intraligand luminescence can be used as a potential energetic material.Display Omitted
Keywords: Zn(II); Crystal structure; Luminescence; Thermal behavior;

Structure and magnetic property of a cubane-type Ni-substituted polyoxotungstate based on trivacant Dawson-type unit by Rong Wan; Yueyan Wang; Mengdan Han; Pengtao Ma; Jingyang Niu; Jingping Wang (72-75).
A novel cubane-type Ni-substituted polyoxotungstate based on trivacant Dawson-type [P2W15O56]12 − unit with the formula of Na4H4[P2W15O56(W0.5Ni3.5)(OH)6(H2O)3]·18.5H2O (1) has been synthesized in aqueous medium and characterized by IR spectroscopy, EDX spectrum, thermogravimetric analysis and magnetic measurements. Structural analysis indicates that 1 consists of a trivacant Dawson-type unit [P2W15O56]12 − incorporated in a cubane-type {Ni3.5W0.5O7(OH)6(H2O)3} group. Magnetic studies show that the ferromagnetic Ni―Ni exchange interactions exist in the cubane-type cluster.A novel cubane-type Ni-substituted polyoxotungstate based on trivacant Dawson-type unit has been synthesized, which consists of a trivacant Dawson-type [P2W15O56]12 − incorporated in a cubane-type {Ni3.5W0.5O7(OH)6(H2O)3} cluster.Display Omitted
Keywords: Polyoxotungsate; Magnetic property; Dawson structure;

A novel dimeric polyanion based on mono-manganese substituted Keggin-type phosphotungstate: (MnPW11O39)2 10 − by Xinbo Dong; Shenghua Yang; Bin Liu; Panfeng Wu; Huaiming Hu; Ganglin Xue (76-79).
The novel dimeric polyoxometalate, (MnPW11O39)2 10 − (1a), has been synthesized by reacting [B-α-PW9O34]9 − with Mn2 + ions in weak acid aqueous solution (pH = 5.3) under hydrothermal condition and isolated in the form of (C14H14N4)5H10(MnPW11O39)2·2H2O (1), which was characterized by IR spectroscopy, elemental analysis, thermogravimetric analysis, and magnetic measurements. The polyanion represents the first example of dimeric polyanion based on mono-transition metal (TM) substituted Keggin-type polyanions linked by two TM-μ2-O-TM bridges. Magnetic measurements show that the Mn┄Mn exchange interactions are weakly antiferromagnetic (J  =   0.53 cm− 1).A novel dimeric polyanion based on mono-manganese substituted Keggin-type phosphotungstate has been successfully synthesized and fully characterized.Display Omitted
Keywords: Polyoxometalate; Polyanion; Phosphotungstate; Transition metal substituted;

Two novel self-interpenetrating 3D iron(II) coordination frameworks: Synthesis, spectroscopic and structural characterizations with magnetic properties by Zouaoui Setifi; Abderazzak Addala; Jun Tao; Nanthawat Wannarit; Christopher Glidewell; Fatima Setifi; Sujittra Youngme (80-84).
Two novel self-interpenetrating 3D Fe(II) coordination frameworks namely {Fe(4,4′-bpy)[Ag2(CN)3]2}n (I) and {Fe(4,4′-bpy)[Ag(CN)2]2[AgCN]2}n (II) have been synthesized and fully characterized. The 3D architectures and degree of interpenetration of these coordination frameworks were significantly affected by silver(I) cyanide species. The crystal structure of I presents 4-fold interpenetrating 3D framework with 4,4′-bpy and [Ag2(CN)3] species. While, that of II constructed by 4,4′-bpy and two different silver(I) cyanide species, AgCN and [Ag(CN)2] resulting to 2-fold interpenetrating 3D framework. The stability and rigidity of both coordination frameworks are mainly supported dominantly by AgI  ⋯ AgI interactions. Their magnetic properties exhibit high spin behavior.Two novel self-interpenetrating 3D Fe(II) coordination frameworks namely {Fe(4,4′-bpy)[Ag2(CN)3]2}n (I) and {Fe(4,4′-bpy)[Ag(CN)2]2[AgCN]2}n (II) have been synthesized and fully characterized. The 3D architectures and degree of interpenetration of these coordination frameworks were significantly affected by silver(I) cyanide species. Their magnetic properties exhibit high spin behavior.Display Omitted
Keywords: Fe(II) coordination frameworks; Self-interpenetrate; AgI  ⋯ AgI; Magnetic properties;