Gas-phase complexes of Ni²⁺ and Ca²⁺ with deprotonated histidylhistidine (HisHis): A model case for polyhistidyl-metal binding motifs

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• 作者：Katrin Peckelsen^a ; Jonathan Martens^b ; Giel Berden^b ; Jos Oomens^b ; ^c ; Robert C. Dunbar^d ; Anthony J.H.M. Meijer^e ; ^{a.meijer@sheffield.ac.uk} ; Mathias Schä ; fer^a ; ^{mathias.schaefer@uni-koeln.de}
• 关键词：Infrared multiple photon dissociation IRMPD spectroscopy ; Nickel and calcium-histidylhistidine complexes ; Density functional theory computations ; Iminolate and charge solvation binding patterns
• 刊名：Journal of Molecular Spectroscopy
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：332
• 期：Complete
• 页码：38-44
• 全文大小：1288 K
• 卷排序：332

文摘

Complexes of Ca2+ and Ni2+ with deprotonated HisHis adopt different binding motifs. Infrared multiple-photon dissociation (IRMPD) spectroscopy & theory deliver clear evidence. An iminolate binding motif is identified for the [Ni(HisHis-H)]+ complex. The [Ni(HisHis-H)]+ complex is a model for transition metal complexes of poly-histidyl-domains. A charge solvation binding motif is identified for the [Ca(HisHis-H)]+ complex.