Preparation, structure and optical properties of [CH3SC(=NH2)NH2]3PbI5, [CH3SC(=NH2)NH2]4Pb2Br8 and [CH3SC(=NH2)NH2]3PbCl5•CH3SC(=NH2)NH2Cl

被引：67

作者：

Mousdis, GA

Gionis, V

Papavassiliou, GC

Raptopoulou, CP

Terzis, A

机构：

[1] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece

[2] NCSR Demokritos, Inst Mat Sci, Athens 15310, Greece

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1998年 / 8卷 / 10期

关键词：

D O I：

10.1039/a802926a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The preparation, crystal structures and optical absorption spectra of [CH3SC (= NH2)NH2](3)PbI5 1, [CH3SC (=NH2)NH2](4)Pb2Br8 2 and [CH3SC(=NH2)NH2](3)PbCl5. CH3SC (=NH2)NH2Cl 3 are reported. Compounds 1 and 3 consist of deformed PbX6, octahedra, which share opposite corners to form quasi-zero-dimensional or one-dimensional infinite chains along the a-axis. Compound 2 consists of Pb2Br9 units which-are connected with two neighbouring units by non-opposite Br atoms; in this way, infinite zigzag chains are formed. A blue shift of the excitonic absorption bands, in comparison to those of systems with higher dimensionality, is observed.

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页码：2259 / 2262

页数：4

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