1. The First Observationof One-Dimensional Naphthalenediimidato-BasedTransition-Metal Coordination Polymers: Syntheses, Crystal Structuresand Properties.
- Author
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Tao, Tao, Lei, Yan-Hua, Peng, Yu-Xin, Wang, Ying, Huang, Wei, Chen, Zhao-Xu, and You, Xiao-Zeng
- Subjects
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NAPHTHALENE , *COORDINATION polymers , *TRANSITION metals , *CRYSTAL structure , *MOLECULAR self-assembly , *CARBOXYLIC acids - Abstract
Metal-directed assembly of naphthalene-1,4,5,8-tetracarboxylicacid (NTA) with different transition-metal salts in the presence ofammonia results in a series of one-dimensional metalânaphthalenediimidato(MâNDI) coordination polymers with the formulas of {[Ag(NDI)](NH4)}n(P1), [Zn(NDI)(NH3)2]n(P2), [Cd(NDI)(NH3)2]n(P3), [Co(NDI)(NH3)2]n(P4) and [Ni(NDI)(NH3)2]n(P5), respectively.It is worthwhile to mention that the 1D straight-line NDIâAg(I)coordination polymer P1is formed stepwise from a dinuclearNDIâAg(I) intermediate [Ag2(NDI)(NH3)2] (2AgNDI), where ammonia serves as a stabilizingreagent of Ag(I) ion and a weak base to remove the protons of NDIH2simultaneously. Furthermore, P1exhibits semiconductingproperties in the solid state which may originate from its all-parallel-alignedpacking structure (AAAA) which is different from the common ABAB packingmode for P2âP5and 2AgNDI. In addition, theoretic computational studies as well as X-ray photoelectronspectrometer spectra on P1and 2AgNDIhavealso been carried out. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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