Trinuclear Co(II) and Mononuclear Ni(II) Salamo-Type Bisoxime Coordination Compounds

Abstract

Abstract:One trinuclear Co(II) coordination compound [{CoL 1 (OAc)(CH 3 COCH 3 )} 2 Co] (1) and one unprecedented mononuclear Ni(II) coordination compound [Ni(L 2 ) 2 ] (2), constructed from a Salamo-type ligand H 2 L 1 were synthesized and characterized by elemental analyses, IR, UV-vis spectra, and single crystal X-ray diffraction analyses. The results show that the Co(II) atoms have no significant distortion in CoO 6 or CoO 4 N 2 octahedrons in coordination compound 1. Interestingly, in coordination compound 2, the desired tri-or mono-nuclear Salamo-type Ni(II) coordination compound was not obtained, but an unprecedented Ni(II) coordination compound [Ni(L 2 ) 2 ] was synthesized, the Ni1 atom having no significant distortion in the NiO 2 N 2 planar quadrilateral geometry. Furthermore, the antimicrobial activities of coordination compound 1 and previously reported coordination compound [{CoL 1 (OAc)(MeOH)} 2 Co]·2MeOH (3) are discussed.

Synthesis and Fluorescence Properties of Asymmetrical Salamo-Type Tetranuclear Zinc(II) Complex

“…The Salamo metal complexes are widely utilized in various fields such as industrial catalyses [18,19], biological fields [20,21], ion recognitions [22][23][24], environmental sciences [25][26][27][28], and magnetic [29,30] and luminescent materials [31][32][33][34][35][36][37][38][39]. Recently, a lot of researchers have tried many approaches to change the (-CH=N-(CH 2 ) n -N=CH-) instead of (-CH=N-O-(CH 2 ) n -O-N=CH-) unit in order to make the exchange reaction and hydrolysis reaction rate of the compounds greatly reduced and the balance level raised to a very great extent, so the Salamo-type compounds are more stable than the Salen-type compounds [40][41][42].…”

Structural and Hirshfeld Surface Analyses of a Novel Hetero-Tetranuclear CuII-NaI Bis(Salamo)-Based Coordination Compound

“…Salen-type ligands and their coordination compounds have been extensively investigated [1][2][3][4][5][6][7][8][9][10] for their catalytic activities [11][12][13][14][15], biological activities [16][17][18][19][20][21][22], supramolecular architectures [23][24][25][26][27][28][29][30][31][32], and fluorescence properties [33][34][35][36][37][38]. To improve the properties of Salen-type ligands, in recent years, Nabeshima and our group's researches mostly concentrated on the syntheses of Salamo-type ligands, which are a class of novel Salen-type analogues [39][40][41][42][43][44][45][46][47][48]…”

Structural and Luminescent Properties of Heterobimetallic Zinc(II)-Europium(III) Dimer Constructed from N2O2-Type Bisoxime and Terephthalic Acid

“…Salen-and salamo-type complexes have been extensively investigated in organometallic chemistry and modern coordination chemistry for several decades [7][8][9][10][11], their complexes are well-known for their potential applications in many areas, such as catalysts [12,13], biological fields [14][15][16][17][18][19][20][21], supramolecular buildings [22][23][24][25][26], molecular recognitions [27][28][29][30][31], magnetic [32][33][34][35][36][37] and luminescence [38][39][40][41][42][43][44][45] materials and so forth. Self-assembling processes of a metallohost complex with auxiliary organic ligands are usually utilized in the building of metal-organic framework (MOF) materials [46,47].…”