Synthesis, spectral, structural and computational studies on NiS4 and NiS2NP chromophores: Anagostic and C–H⋯π (chelate) interactions in [Ni(dtc)(PPh3)(NCS)] (dtc = N-(2-phenylethyl)-N-(4-methoxybenzyl)- dithiocarbamate and N-(2-phenylethyl)-N-(4-chlorobenzyl)dithiocarbamate)
作者:E. Sathiyaraj、P. Selvaganapathi、S. Thirumaran、Samuele Ciattini
DOI:10.1016/j.molstruc.2016.04.079
日期:2016.9
in heteroleptic complexes. Electronic spectral studies on all the complexes (1–12) suggest square planar geometry around the nickel(II). Structures of 10 and 12 have been elucidated by X-ray crystallography. The dithiocarbamate anions in 10 and 12 chelate to the nickel atom. Both the structures reveal C–H⋯Ni intramolecular anagostic interaction. C–H⋯π (chelate) is observed in complexes 10. Supramolecular
摘要 双(N-(2-苯乙基)-N-取代的苄基二硫代氨基甲酸-S,S')镍(II) (1-6)和(N-(2-苯乙基)-N-取代的苄基二硫代氨基甲酸-S,S') (硫氰酸根合-N) (三苯基膦)镍(II) (7–12) [取代苄基 = 2HO–C6H4–CH2– (1,7), 3HO–C6H4–CH2– (2,8), 4HO–C6H4–CH2 – (3,9), 4CH3O–C6H4–CH2– (4,10), 4F–C6H4–CH2– (5,11), 4Cl–C6H4–CH2– (6,12)] 复合物已合成并表征为元素分析、IR、UV-Vis 和 NMR(1H 和 13C)光谱。在杂配配合物 7-12 的情况下,与均配配合物相比,vC-N 值向更高波数的转变和 NCS2 碳信号向低场转变,表明由于 π 的存在硫脲 vC-N 键的强度增加-在杂配复合物中接受三苯基膦配体。对所有配合物 (1-12)