The Ag2S2 rings connect [Fe(NCS)5(DMF)]2- (DMF=N,N-dimethylformamide) octahedrons by bridging thiocyanates leading to a 3-D [Ag2Fe(SCN)5(DMF)]n framework. The Fe(III) atoms are in the octahedral geometry and Ag(I) ato...The Ag2S2 rings connect [Fe(NCS)5(DMF)]2- (DMF=N,N-dimethylformamide) octahedrons by bridging thiocyanates leading to a 3-D [Ag2Fe(SCN)5(DMF)]n framework. The Fe(III) atoms are in the octahedral geometry and Ag(I) atoms are in the distorted tetrahedral geometry. One-dimensional Ag2S2-S-Ag2S2 wave-like strand chains along the b-axis and channels constructed from ten-membered Ag2Fe(SCN)2S rings along the c-axis feature the three-dimensional framework. The Ag…Ag distance of 0.3103(1) nm in Ag2S2 rings indicates weak Ag…Ag inter-action. Such an Ag2S2-S-Ag2S2 chain in silver(I) complexes is unprecedented. Crystal data: Mr=635.09, ortho-rhombic, Pnma, a=1.64214(13) nm,b=1.40075(11) nm,c=0.84445(7) nm,V=1.9424(3) nm3,Z=4, m(Mo Ka)=3.278 mm-1, Dcalcd=2.172 g·cm-3, F(000)=1220, R1=0.0443, wR2=0.1138.展开更多
The 2-D heteronuclear coordination polymer {[Ag4Fe2(SCN)12(H2O)2] [(inaH)2(H2O)2]}n (1) (inaH is the ab-breviation of protonated isonicotinic acid) with chemical formula C24H20Ag4Fe2N14O8S12 has been synthesized and c...The 2-D heteronuclear coordination polymer {[Ag4Fe2(SCN)12(H2O)2] [(inaH)2(H2O)2]}n (1) (inaH is the ab-breviation of protonated isonicotinic acid) with chemical formula C24H20Ag4Fe2N14O8S12 has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. The Ag2S2 rings connect two kinds of octahedral geometries of Fe(III) ions, [Fe(NCS)6]3- and [Fe(H2O)2(NCS)4]- units with bridging thiocyanate ions leading to 2-D [Ag4Fe2(SCN)12(H2O)2]2- anion framework. Four kinds of rings including the un-precedented thirty-two membered Ag4Fe4(SCN)8 rings share corners or edges in the 2-D anion layer structure. All thiocyanates coordinate to the metal ions according to the HSAB principle with N atoms binding to the Fe(III) ions and with S atoms binding to Ag(I) ions. Pronoated ina cations stabilize the layer structure as counter ions and hy-drogen bonds were formed within the pronoated ina cations dimer and between the dimers and the lattice waters. Crystal data: Mr=1560.44, triclinic, P1, a=0.76082(1) nm, b=0.9234 nm, c=1.85611(4) nm, a=103.0170(10), b=93.7780(10), g=97.4080(10), V=1.25385(3) nm3, Z=1, m(Mo Ka)=2.650 mm-1, Dc=2.067 g·cm-3, F(000)=758, R1=0.0412, wR2=0.1003.展开更多
文摘The Ag2S2 rings connect [Fe(NCS)5(DMF)]2- (DMF=N,N-dimethylformamide) octahedrons by bridging thiocyanates leading to a 3-D [Ag2Fe(SCN)5(DMF)]n framework. The Fe(III) atoms are in the octahedral geometry and Ag(I) atoms are in the distorted tetrahedral geometry. One-dimensional Ag2S2-S-Ag2S2 wave-like strand chains along the b-axis and channels constructed from ten-membered Ag2Fe(SCN)2S rings along the c-axis feature the three-dimensional framework. The Ag…Ag distance of 0.3103(1) nm in Ag2S2 rings indicates weak Ag…Ag inter-action. Such an Ag2S2-S-Ag2S2 chain in silver(I) complexes is unprecedented. Crystal data: Mr=635.09, ortho-rhombic, Pnma, a=1.64214(13) nm,b=1.40075(11) nm,c=0.84445(7) nm,V=1.9424(3) nm3,Z=4, m(Mo Ka)=3.278 mm-1, Dcalcd=2.172 g·cm-3, F(000)=1220, R1=0.0443, wR2=0.1138.
文摘The 2-D heteronuclear coordination polymer {[Ag4Fe2(SCN)12(H2O)2] [(inaH)2(H2O)2]}n (1) (inaH is the ab-breviation of protonated isonicotinic acid) with chemical formula C24H20Ag4Fe2N14O8S12 has been synthesized and characterized by single crystal X-ray diffraction, elemental analysis and IR spectroscopy. The Ag2S2 rings connect two kinds of octahedral geometries of Fe(III) ions, [Fe(NCS)6]3- and [Fe(H2O)2(NCS)4]- units with bridging thiocyanate ions leading to 2-D [Ag4Fe2(SCN)12(H2O)2]2- anion framework. Four kinds of rings including the un-precedented thirty-two membered Ag4Fe4(SCN)8 rings share corners or edges in the 2-D anion layer structure. All thiocyanates coordinate to the metal ions according to the HSAB principle with N atoms binding to the Fe(III) ions and with S atoms binding to Ag(I) ions. Pronoated ina cations stabilize the layer structure as counter ions and hy-drogen bonds were formed within the pronoated ina cations dimer and between the dimers and the lattice waters. Crystal data: Mr=1560.44, triclinic, P1, a=0.76082(1) nm, b=0.9234 nm, c=1.85611(4) nm, a=103.0170(10), b=93.7780(10), g=97.4080(10), V=1.25385(3) nm3, Z=1, m(Mo Ka)=2.650 mm-1, Dc=2.067 g·cm-3, F(000)=758, R1=0.0412, wR2=0.1003.
