Author:
Johnston Dean H.,Agho Ikponmwosa
Abstract
Charge-assisted hydrogen bonding plays a significant role in the crystal structures of solvates of ionic compounds, especially when the cation or cations are primary ammonium salts. We report the crystal structures of four ammonium salts of molybdenum halide cluster solvates where we observe significant hydrogen bonding between the solvent molecules and cations. The crystal structures of bis(anilinium) octa-μ3-chlorido-hexachlorido-octahedro-hexamolybdate N,N-dimethylformamide tetrasolvate, (C6H8N)2[Mo6Cl8Cl6]·4C3H7NO, (I), p-phenylenediammonium octa-μ3-chlorido-hexachlorido-octahedro-hexamolybdate N,N-dimethylformamide hexasolvate, (C6H10N2)[Mo6Cl8Cl6]·6C3H7NO, (II), N,N′-(1,4-phenylene)bis(propan-2-iminium) octa-μ3-chlorido-hexachlorido-octahedro-hexamolybdate acetone trisolvate, (C12H18N2)[Mo6Cl8Cl6]·3C3H6O, (III), and 1,1′-dimethyl-4,4′-bipyridinium octa-μ3-chlorido-hexachlorido-octahedro-hexamolybdate N,N-dimethylformamide tetrasolvate, (C12H14N2)[Mo6Cl8Cl6]·4C3H7NO, (IV), are reported and described. In (I), the anilinium cations and N,N-dimethylformamide (DMF) solvent molecules form a cyclic R
4
2(8) hydrogen-bonded motif centered on a crystallographic inversion center with an additional DMF molecule forming a D(2) interaction. The p-phenylenediammonium cation in (II) forms three D(2) interactions between the three N—H bonds and three independent N,N-dimethylformamide molecules. The dication in (III) is a protonated Schiff base solvated by acetone molecules. Compound (IV) contains a methyl viologen dication with N,N-dimethylformamide molecules forming close contacts with both aromatic and methyl H atoms.
Funder
National Science Foundation, Division Of Undergraduate Education
Publisher
International Union of Crystallography (IUCr)
Subject
Condensed Matter Physics,General Materials Science,General Chemistry
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献