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Synthesis, Characterization and Structural Determination of Ferrocene Derivatives Linked with Benzo[b]pyrans——2-Amino-7,7-dimethyl-4-ferrocenyl-5-oxo-5,6, 7,8-tetrohydro-4H-chromene-3-carbonitrile
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作者 文丽荣 齐文英 +2 位作者 李亚丰 李明 孙恩涛 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2007年第7期811-816,共6页
The title compound (C22H22N2O2Fe·CH3OH) was synthesized via a one-pot procedure from ferrocenylaldehyde, malononitrile and 5,5-dimethyl-1,3-cyclohexanedione using room temperature ionic liquid and pyridine as t... The title compound (C22H22N2O2Fe·CH3OH) was synthesized via a one-pot procedure from ferrocenylaldehyde, malononitrile and 5,5-dimethyl-1,3-cyclohexanedione using room temperature ionic liquid and pyridine as the catalysts, and characterized by elemental analysis, IR and ^1H NMR. The structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic system, space group P21/n, with a = 9.7085(15), b = 22.951(4), c = 9.987(2) A, β = 112.494(3)°, V = 2055.9(6)A^3 Z = 4, Mr= 402.28, De= 1.403 g/cm^3, p = 0.759 mm^-1, F(000) = 868, the final R = 0.0536 and wR = 0.1449 for 4202 observed reflections with I 〉 2σ(I). The supramolecular single-helix chain of the title compound is formed by linking the building units with the hydrogen bond between N1 and N2. The adjacent chains are connected to a 2D layer by the hydrogen bond between N1 and O1. The adjacent layers are further linked by van der waals' force. The CH3OH molecule is trapped in the interlayer. 展开更多
关键词 ferrocenene tetrahydrochromene MCRS crystal structure
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