Journal
CRYSTALS
Volume 9, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/cryst9020101
Keywords
half-salamo ligand; homo-trinuclear Ni(II) complex; structure; Hirshfeld surface analysis; fluorescence property
Funding
- National Natural Science Foundation of China [21761018]
- Program for Excellent Team of Scientific Research in Lanzhou Jiaotong University [201706]
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A new homo-trinuclear Ni(II) half-salamo-based complex [Ni-3(L)(2)(mu-OAc)(2)(OAc)(2)(CH3OH)(2)]2CH(3)OH was synthesized via the reaction of a tridentate ligand HL (2-[O-(1-ethyloxyamide)]oxime-4-bromophenol) and Ni(OAc)(2)4H(2)O, and characterized using elemental analyses, IR spectra, UV-Vis absorption spectra, X-ray crystallography, and Hirshfeld analysis. Interestingly, single-crystal X-ray analysis showed that the two acetate molecules were bonded simultaneously with the Ni(II) atoms by mono-dentate chelating and bidentate bridging coordination modes, respectively, and the resulting hexa-coordinate geometries were ultimately formed. Furthermore, the Hirshfeld analysis of the complex was studied. Compared with HL, the complex fluorescence intensity was significantly lowered, indicating that the Ni(II) ions have fluorescence quenching characteristics.
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