Synthesis, crystal structures, spectral studies and reactivity of square planar copper(II) complexes containing Schiff base ligand

Poulami Pattanayak*, Jahar Lal Pratihar, Debprasad Patra, Chia Her Lin, Paula Brandão, Dasarath Mal, Vitor Felix

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

12 引文 斯高帕斯(Scopus)

摘要

The reactions of HL1 [2-((2-(benzylthio)phenylimino)methyl) phenol] and HL2 [3-((2-(benzylthio)phenylimino)methyl)-2-hydroxy-5- methylbenzaldehyde] separately with Cu(OAc)2·H2O afforded new Cu(II) complexes [Cu(L1)(OAc)] (1) and [Cu(L 2)2] (2), respectively. These are characterized by microanalytical data and spectroscopic studies. UV-vis spectra of the complexes show intense low-energy transitions ∼ 420 nm which are ligand to metal charge transfer (LMCT) transitions. The single-crystal X-ray structures were determined for 1 and 2. Reactions of [Cu(L1)(OAc)] (1) with, SCN - and show the replacement of weakly coordinated acetate yielding [Cu(L1)(N3)], [Cu(L1)(SCN)] and [Cu(L 1)(NO2)], respectively. Unequivocal characterization of the substituted products has been done by single-crystal X-ray study of [Cu(L1)(N3)]. HL2 and its Cu(II) complex exhibited low-intensity emission bands at ∼575 nm upon excitation at 375 nm and at 420 nm, respectively. Redox properties of the complexes were determined electrochemically. Density functional theory (DFT) computations have been carried out to explain the spectroscopic and redox properties of the complexes.

原文英語
頁(從 - 到)568-579
頁數12
期刊Journal of Coordination Chemistry
66
發行號4
DOIs
出版狀態已發佈 - 2013 2月 1
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 材料化學

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