按照K2Se:K2Te2:MnCl2@4H2O:SnCl2 2H2O:Se:乙二胺(en)＝3.8:1:2:2:6:270的摩尔比配料,采用溶剂热法使原料混合物在180℃反应7 d,得到黑色块状晶体[Mn(en)3]2@Sn2Se4Te2.属于三斜晶系,空间群为P-1,晶胞参数a＝0.91428(7)nm,b＝1.02781(7)nm,c＝1.15745(8)nm,α＝94.632(2)°,β＝100.944(2)°,γ＝115.918(1)°,V＝0.94382(12)nm3,Z＝1.晶体由[Mn(en)3]2+和(Sn2Se4Te2)4-堆积而成.具有Zintl结构的特征半导体[Mn(en)3]2@Sn2Se4Te2的光学能隙(Eg)为2.2 eV.当温度低于190℃时,[Mn(en)3]2@Sn2Se4Te2晶体是稳定的.详细讨论了这类化合物的组成对晶体结构和光吸收性能的影响.
参考文献
| [1] | M.G.Kanatzidis, J.H.Liao, Molten Alkali-metal Polychalcogenides as Reagents and Solvents for the Synthesis of new Chalcogenide Materials, J.Am. Chem. Soc., 112, 741(1990) |
| [2] | LIU Yanling(刘艳玲),WANG Ping(王平),SHU Guiming(舒桂明),GUO Hongyou(郭洪猷),Synthesis and structure characterization of multinary metal chalcogenides(多元金属硫族化合物的合成和结构表征),Chinese Journal of Materials Research(材料研究学报),13(5),458(1999) |
| [3] | J.Li, Z.Chen, R-J.Wang, Low temperature route towards ner materials: Solvothermal synthesis of metal chalcogenides in ethylenediamine, Coordination Chemistry Reviews, 190, 707(1999) |
| [4] | K.O.Klepp, K2Sn4Se8-ein gemischtvalentes Selenostannat Z. Naturforsch., B47(3), 406(1992) |
| [5] | J.Li, Z.Chen, t-J.Emge, T.Yuen, Synthesis, structure characterization and magnetic properties of tellurostannates [M(en)3]2Sn2Te6 (M＝Mn, Zn), Inorg. Chim. Acta., 273, 310(1998) |
| [6] | CHEN Zhen(陈震),WANG Ruji(王如骥),Synthesis of Transition Metal Chalcogenide[M(en)3]2Sn2Se6(M＝Mn,Zn)and Studies of Thermogravimetric Properties([M(en)3]2Sn2Se6(M＝Mn,Zn)的制备及其热稳定性),Acta Physico-ChimicaSinica(物理化学学报),15(12),1070(1999) |
| [7] | B.Kreds, H.Uhlen, Selenostannates from aqueons solution ,preparation and structure of Na4Sn2Se6.13H2O,J.Z.Anorg. Allg. Chem., 549, 35(1987) |
| [8] | B.Eisenmann, J.Hansa, Crystal structure of tetrapotasslum hexaselenodistannate K4Sn2Se6, Z.Kristallogr.,203, 299(1993) |
| [9] | W.S.Sheldrick, B.Schaaf, Parstellung und Kristallstruktur von Rb2Sn3Se7 und Rb4Sn2Se6,Z.Anorg. Allg. Chem., 620, 1041(1994) |
| [10] | S.Jaulmes, P. Houenou, Crystal structure of tin (Ⅳ) thallium (Ⅰ) selenide TlSnSe3, Mater. Res.Bull., 15,911(1980) |
| [11] | W.S.Sheldrick, The edge-bridged tritetrahedtal selenostannate (Ⅳ) anion [Sn3Se8]4-, preparation and structure of K4Sn3Se8, Z.Naturforsch. B.Chem.,Sci., 43(3), 249(1988) |
| [12] | F.Andreas, B.Roger, Synthese, struktur und eigenschaften yon [(C4 H9)NH2]4 [Sn2 Se6],[(C4H9)NH2]4[Sn4Se10] @ 2H2O und [(C3H7)NH]2[Sn3Se7], Z.Anorg. Allg. Chem., 627(3), 411(2001) |
| [13] | W.S.Shelkdrick, H.G.Braunbeck, Prepatrtion and crystal structure of Rb2Sn2Se5: a rubidium selenostannate (Ⅳ) with a framework structure, Z.Naturforsch. B. Chem. Sci., 47(1), 151(1992) |
| [14] | V.Agafonov, B.Legendre, N.Rodier, J.M.Cense, E.Dichi, G.Kra, Acta Crystallogr., Sect. C, C.cryst.,struct.commun, 47(6), 1300(1991) |
| [15] | A.Loose, W.S.Sheldrick, Synthesis and structure of [Sn4Se11]6-, and model anions foe the solventothermal reaction pathway to lamellar selenidostannates (Ⅳ), Z.Anorg, Allg. Chem., 625, 233(1999) |
| [16] | A.Loose, W.S.Sheldrick, Solventothermal synthesis of the lamellar selenidostannates (Ⅳ) A2Sn4Se9@H2O(A＝Rb,Cs) and Cs2Sn2Sea, Z.Naturforsch. B Chem., Sci., 53(3), 349(1998) |
| [17] | A.Hagfeldt, M.Gratzel, Molecular photovoltaics, Acc. Chem. Res., 33(5), 269(2000) |
| [18] | WANG Deqiang(王德强),WANG Ping(王平),GUO Hongyou(郭洪猷),Synthesis and Structure of KCuZrSe3(KCuZrSe3的合成及结构),Acta.Chimica Sinica(化学学报),57,497(1999) |
| [19] | G.M.Sheldrik, SHELXL 97, Program for the Refinement of Crystal Structures (Germany, University of Gottingen, 1997) |
| [20] | E.Keller, SCHAKAL 92: A computer program for graphical representation of molecular and crystallographic models (University of Freiburg, Freiburg, Germany, 1992) |
| [21] | J.Y.Lu, L.Lawandy, Li.T. Yuen, C.L.Lin, A new type of two-dimensional mental xoordination systems:Hydrothermal synthesis and properties of the first Oxalato-bpy Mixed-ligand Framework [M(ox)(bpy)](M＝Fe(Ⅱ), Co(Ⅱ), Ni(Ⅱ), Zn (Ⅱ); ox ＝ C2O24-, bby＝4,4'-bipyridine), Inorg. Chem., 38, 2695(1999) |
| [22] | T.J.McCarthy, S.P. Ngeyi, J.H.Liao, D.C.DeGroot, T.Hogan, C.R.Kannewurf, M.G.Kanatzidis, Molten salt synthesis and properties of three new solid-state ternary bismuth chalcogenides, β-CsBiS2, γ-CsBiS2, and K2Bi8Se13, Chem. Mater., 5, 331(1993) |
| [23] | W.W.Wendlandt, H.G.Hecht, Reflectance Spectroscopy, (Interscience Publishers, New York, 1966) p.103 |
| [24] | J.I.Pankove, Optical Processes in Semiconductors (Prentice-Hall, Inc., Englewood Cliffs, New Jersey, 1971)p.34 |
| [25] | X.Chen, X.Huang, A.Fu, J.Li, L-D.Zhang, H-Y.Guo, From 1D chain to 3D network: syntheses, structures,and properties of K2MnSn2Se6, K2MnSnSe4, K2Ag2SnSe4, Chem. Mater., 12(8), 2385(2000) |
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