期刊
CRYSTENGCOMM
卷 15, 期 42, 页码 8430-8436出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ce40977e
关键词
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资金
- National Science Council of the People's Republic of China [21071018, 21271026]
- specialized research fund for the doctoral program of higher education, State Education Ministry of China [20091101110038]
1D and 2D homochiral nucleotides coordination polymers UMP/CMP-4,4'-bipy-M(II) (M = Co, Cu, Ni) 1-5 were designed, synthesized and analyzed by the single-crystal X-ray diffraction method. Axial chirality of 4,4'-bipy is captured and extended to a 1D infinite chain due to metal coordination and cooperation of a chiral nucleotide inducer, which is defined as Extended Axial Chirality (EAC) for the first time. Different chiral sources coexist in these nucleotide coordination polymers and can be observed clearly in solid-state circular dichroism (CD) spectroscopy, including the inherent chirality of ligands, extended axial chirality and supramolecular helical chirality. Furthermore, 2D complexes of CMP-bipy-Cu (3) present dominant Cu(II)center dot center dot center dot Cu(II) magnetic exchange through (-O-P-O-) and bipy bridge, exhibiting ferromagnetic interactions.
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