Two new complexes, [W2Ag2S8?Ca(DMF)6]n 1 and [WAgS4?Na(DMF)3]n 2, have been synthesized and characterized. Single-crystal X-ray analyses show both 1 and 2 have {WAgS4}n anion linear chains, but 1 has a discrete [Ca(DM...Two new complexes, [W2Ag2S8?Ca(DMF)6]n 1 and [WAgS4?Na(DMF)3]n 2, have been synthesized and characterized. Single-crystal X-ray analyses show both 1 and 2 have {WAgS4}n anion linear chains, but 1 has a discrete [Ca(DMF)6]2+ cation while 2 is a linear chain. UV-Visible-Near-IR spectroscopy data show that the bandgaps of the two complexes are 1.86 and 1.99 eV, respectively. Electrical conductivity measurements reveal the conductivities of 1 and 2 are 10?7 and 10?8 Scm?1, respectively and they exhibit thermally activated temperature depen- dence, which may be attributed to semiconductors.展开更多
A new cadmium(II) coordination polymer with benzenetricarboxylate{Cd2- (Htma)2(H2O)2}}n 1 (Htma = 1-carboxybenzene-2,4-dicarboxylate) has been synthesized by hydro- thermal reaction. 1 crystallizes in triclinic, space...A new cadmium(II) coordination polymer with benzenetricarboxylate{Cd2- (Htma)2(H2O)2}}n 1 (Htma = 1-carboxybenzene-2,4-dicarboxylate) has been synthesized by hydro- thermal reaction. 1 crystallizes in triclinic, space group P?with a = 6.9990(8), b = 7.0564(8), c = 10.096(1) ? = 83.438(1), = 86.357(2), = 69.233(2)? V = 463.02(9) 3, Dc = 2.428 g/cm3, F(000) = 328, Mr = 677.08, m(MoKa) = 2.382 mm-1, Z = 1, the final R = 0.0284 and wR = 0.0772 for 1540 observed reflections (I≥2s(I)). The structure of 1 consists of centrosymmetric dinuclear units with all metal centers being six-coordinated, which adopt a distorted octahedral configuration and lead to the formation of three-dimensional microporous framework with size of about 3 ??8 ? Fluoerescent measurement showed that 1 exhibits intense fluorescent emission.展开更多
Two mononuclear tin(IV) complexes, [Sn(pda)2(edt)2] (pda = o-phenylenediamine) (C16H24N4S4Sn, Mr = 519.32) 1 and [Sn(eda)(edt)2] (eda = ethylenediamine) (C6H16N2S4Sn, Mr = 363.14) 2 were synthesized and characterized ...Two mononuclear tin(IV) complexes, [Sn(pda)2(edt)2] (pda = o-phenylenediamine) (C16H24N4S4Sn, Mr = 519.32) 1 and [Sn(eda)(edt)2] (eda = ethylenediamine) (C6H16N2S4Sn, Mr = 363.14) 2 were synthesized and characterized by X-ray structure analysis. 1 belongs to trigonal, space group P-3c1 with a = b = 20.0280(6), c = 8.7679(5) ? V = 3045.8(2) ?, Z = 6, Dc = 1.699 g/cm3, m = 1.677 mm-1, F(000) = 1572, the final R = 0.0418 and wR = 0.1019 for 1805 independent reflections. 2 crystallizes in monoclinic, space group P21/c with a = 10.911(3), b = 9.783(2), c = 11.831(3) ? b = 100.28(2), V = 1242.6(6) ?, Z = 4, Dc = 1.941 g/cm3, m = 2.690 mm-1, F(000) = 720, the final R = 0.0280 and wR = 0.0627 for 2166 independent reflections. Both Sn4+ ions in these two complexes are six-coordinated with a slightly distorted octahedral configu- ration.展开更多
基金This research was supported by the State Key Laboratory of Structural Chemistry, the National Science and Technology of China (001CB1089), the Chinese Academy of Sciences (CAS), the National Science Foundation of China (20273073, 20333070, 90206040)
文摘Two new complexes, [W2Ag2S8?Ca(DMF)6]n 1 and [WAgS4?Na(DMF)3]n 2, have been synthesized and characterized. Single-crystal X-ray analyses show both 1 and 2 have {WAgS4}n anion linear chains, but 1 has a discrete [Ca(DMF)6]2+ cation while 2 is a linear chain. UV-Visible-Near-IR spectroscopy data show that the bandgaps of the two complexes are 1.86 and 1.99 eV, respectively. Electrical conductivity measurements reveal the conductivities of 1 and 2 are 10?7 and 10?8 Scm?1, respectively and they exhibit thermally activated temperature depen- dence, which may be attributed to semiconductors.
基金This research was supported by the Ministry of Science and Technology of China (001CB1089) the National Natural Science Foundation of China (20273073 90206040) and Natural Science Foundation of Fujian Province (2002F014)
文摘A new cadmium(II) coordination polymer with benzenetricarboxylate{Cd2- (Htma)2(H2O)2}}n 1 (Htma = 1-carboxybenzene-2,4-dicarboxylate) has been synthesized by hydro- thermal reaction. 1 crystallizes in triclinic, space group P?with a = 6.9990(8), b = 7.0564(8), c = 10.096(1) ? = 83.438(1), = 86.357(2), = 69.233(2)? V = 463.02(9) 3, Dc = 2.428 g/cm3, F(000) = 328, Mr = 677.08, m(MoKa) = 2.382 mm-1, Z = 1, the final R = 0.0284 and wR = 0.0772 for 1540 observed reflections (I≥2s(I)). The structure of 1 consists of centrosymmetric dinuclear units with all metal centers being six-coordinated, which adopt a distorted octahedral configuration and lead to the formation of three-dimensional microporous framework with size of about 3 ??8 ? Fluoerescent measurement showed that 1 exhibits intense fluorescent emission.
基金This research was financially supported by the grants from the State Key Laboratory of Structural Chemistry the National Science and Technology of China (001CB1089)+1 种基金 the Chinese Academy of Sciences (CAS) the National Science Foundation of China (20
文摘Two mononuclear tin(IV) complexes, [Sn(pda)2(edt)2] (pda = o-phenylenediamine) (C16H24N4S4Sn, Mr = 519.32) 1 and [Sn(eda)(edt)2] (eda = ethylenediamine) (C6H16N2S4Sn, Mr = 363.14) 2 were synthesized and characterized by X-ray structure analysis. 1 belongs to trigonal, space group P-3c1 with a = b = 20.0280(6), c = 8.7679(5) ? V = 3045.8(2) ?, Z = 6, Dc = 1.699 g/cm3, m = 1.677 mm-1, F(000) = 1572, the final R = 0.0418 and wR = 0.1019 for 1805 independent reflections. 2 crystallizes in monoclinic, space group P21/c with a = 10.911(3), b = 9.783(2), c = 11.831(3) ? b = 100.28(2), V = 1242.6(6) ?, Z = 4, Dc = 1.941 g/cm3, m = 2.690 mm-1, F(000) = 720, the final R = 0.0280 and wR = 0.0627 for 2166 independent reflections. Both Sn4+ ions in these two complexes are six-coordinated with a slightly distorted octahedral configu- ration.
