Using 1-chlorodecane (C10H21CI), benzyl chloride (C6H5CH2CI), a,a'-dichloro-p-xylene (CICH2C6H4CH2CI), 4-phenylbenzyl chloride (C6H5C6H4CH2CI), 2-bromomethyl-naphthal-ene (C10H7CH2Br), 4-bromomethyl-7-methoxycoumarin (C10H7O3CH2Br), 2-bromomethyl-anthraquinone (C14H7CH2Br), 9-chloromethyl-anthracene (C14H9CH2CI), thiourea and halides as starting materials, the organic-inorganic hybrid compounds [C10H21SC(NH2)2]2Pbl4, [C6H5CH2SC(NH2)2]4Pb3l10 [(H2N2)CSCH2C6H4CH2SC(NH2)2]0.5PbI3, [C6H5C6H4CH2S-C(NH2)2]PbI3, [C10H7CH2SC(NH2)2]Pbl3, [C14H7 O2CH2SC(NH2)2]Pbl3, [C14H9CH2SC(NH2)2]PbI3, and [C14H9CH2SC(NH2)2]PbBr4, were prepared and characterized analytically and spectroscopically.
The preparation, crystal structure and optical absorption spectra of [CH3SC(NH2)2]3SnI5 (1), [CH3SC(NH2)2][HSC(NH2)2]SnBr4 (2), (CH3C5H4NCH3)PbBr3 (3), and [C6H5CH2SC-(NH2)2]4Pb3I10 (4) are reported. The compounds 1, 2, 3 consist of MX6-octahedra (M = Sn, Pb, X = I, Br) forming one-dimensional single chains (compounds 1, 3) or double chains (compound 2). The compound 4 forms a two-dimensional inorganic network via corner sharing of three face sharing octahedral units. Because of their low-dimensional character, a blue shift of the excitonic absorption bands, in comparison to those of higher dimensionality systems, is observed.
报道了[CH3SC(NH2)2]3SnI5(1),[CH3SC(NH2)2][HSC(NH2)2]SnBr4(2),(CH3C5H4NCH3)PbBr3(3)和[C6H5CH2SC-(NH2)2]4Pb3I10(4)的制备,晶体结构和光吸收光谱。化合物1、2、3由MX6八面体(M = Sn,Pb,X = I,Br)形成一维单链(化合物1、3)或双链(化合物2)。化合物4通过三个面共享的八面体单元的角共享形成二维无机网络。由于它们的低维特性,与高维系统的激子吸收带相比,观察到蓝移。