Novel Cu (I) ethylene complex with 6,6'-dipheny1-4,4'-bipyrimidine one-dimensionally self-assembled by an intermolecular π-π stacking interaction

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  • π-π相互作用により自己集積化された6,6'-ジフェニル-4,4'-ビピリミジンを配位子とする新規な一次元銅(I)-エチレン錯体の合成および構造

Abstract

Novel Cu(I)-Ph_2bpm/C_2H_4 adduct [Cu(Ph_2bpm)(C_2H_4)]NO_3 (Ph_2bpm＝6,6’-diphenyl-4,4’-bipyrimidine) was prepared and it has been characterized by Xray crystallography. The Cu atom is coordinated by two N atoms in the chelate site of Ph_2bpm and C＝C bond of C_2H_4 in the trigonal-planar geometry. It is interesting that 1D network structures are self-assembled by an intermolecular π-π stacking interaction between a phenyl ring and a phenyl ring in the neighboring Ph_2bpm. The X-ray and IR data supported the assumption that the contribution of the larger Cu(I)→C_2H_4 π-back donation bonding is induced by the electronreleasing phenyl group.

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