Premium
Two new isostructural mercury(II) complexes involving the N‐heterocyclic 1‐[(benzotriazol‐1‐yl)methyl]‐1 H ‐1,3‐imidazole ligand: syntheses, structures and properties
Author(s) -
Wei Xu,
Li Jian-Hua,
Huang Qiu-Ying,
Meng Xiang-Ru
Publication year - 2017
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229617003199
Subject(s) - chemistry , denticity , imidazole , isostructural , ligand (biochemistry) , hydrogen bond , crystallography , stereochemistry , crystal structure , medicinal chemistry , molecule , organic chemistry , biochemistry , receptor
The unsymmetrical N‐heterocyclic ligand 1‐[(benzotriazol‐1‐yl)methyl]‐1 H ‐1,3‐imidazole (bmi) has three potential N‐atom donors and can act in monodentate or bridging coordination modes in the construction of complexes. In addition, the bmi ligand can adopt different coordination conformations, resulting in complexes with different structures due to the presence of the flexible methylene spacer. Two new complexes, namely bis{1‐[(benzotriazol‐1‐yl)methyl]‐1 H ‐1,3‐imidazole‐κ N 3 }dibromidomercury(II), [HgBr 2 (C 10 H 9 N 5 ) 2 ], and bis{1‐[(benzotriazol‐1‐yl)methyl]‐1 H ‐1,3‐imidazole‐κ N 3 }diiodidomercury(II), [HgI 2 (C 10 H 9 N 5 ) 2 ], have been synthesized through the self‐assembly of bmi with HgBr 2 or HgI 2 . Single‐crystal X‐ray diffraction shows that both complexes are mononuclear structures, in which the bmi ligands coordinate to the Hg II ions in monodentate modes. In the solid state, both complexes display three‐dimensional networks formed by a combination of hydrogen bonds and π–π interactions. The IR spectra and PXRD patterns of both complexes have also been recorded.