The asymmetric unit of the title compound, [ZnCl(2)(C(12)H(12)N(2))], contains two independent mol-ecules. The Zn(II) atoms are four-coordinated in distorted tetra-hedral configurations by two N atoms from 5,5'-dimethyl-2,2'-bipyridine and two terminal Cl atoms. In the crystal structure, inter-molecular C-H⋯Cl hydrogen bonds link the mol-ecules. There are C-H⋯π contacts between the methyl group...

The Cambridge Structural Database was surveyed for crystals featuring I⋯Br secondary-bonding in their supramolecular assemblies occurring independently of other obvious synthons and devoid halogen bonding interactions. In all, 41 satisfied these criteria, with nine examples zero-dimensional aggregation (uniformly two-molecule aggregates) 30 one-dimensional chains varying topology (linear, zigza...

The role of charge transfer in halogen bonding is the subject of an ongoing debate and controversy. It is clear from experimental data that charge transfer occurs in halogen bonds, but its contribution to the energetics of the interaction can be evaluated only computationally. Since the charge transfer is not a physically well-defined property, there are multiple computational approaches, which...

Hydrogen bonds and halogen bonds operate in concert in the directed assembly of infinite 1-D chains in binary co-crystals of iodine iso-nicotinamide (2 : 2), 1 and tetrafluorodiiodobenzene iso-nicotinamide (1 : 2) 2.

Trends in the properties of normal valent and multivalent halogen-oxygen bonding are examined for the isomers of the halogen polyoxide families of the types (YXO2) and (YXO3), Y = Cl, Br, I, H, CH(3), X = Cl, Br, I. A qualitative model is formulated on the relationship between the X-O bond distance variations, the ionic character of the bonding, and the degree of halogen valence. The relative s...

Few studies have been reported on the synthesis of ferrocenesulfonates up to now. Here, we describe use ortho-deprotometalation and “halogen dance” reactions easily reach original derivatives. Further functionalizations using cross-coupling metal/halogen exchange were also performed from iodinated Finally, while electrochemical properties selected evaluated compared with corresponding sulfonami...

The Cu(II) atom in the title compound, [CuI(2)(C(20)H(14)N(4))], has a distorted square-pyramidal coordination formed by the N atoms of the tridentate 4'-(4-pyrid-yl)-2,2':6'2''-terpyridine (pyterpy) ligand and two I atoms; one of the I atoms is in the apical position. In contrast to other known square-pyramidal diiodido- and dibromidocopper complexes of the pyterpy ligand in which metal-haloge...

Three N-ar-yl-2,2,2-tri-bromo-acetamides, namely, 2,2,2-tri-bromo-N-(2-fluoro-phen-yl)-acetamide, C8H5Br3FNO, (I), 2,2,2-tri-bromo-N-[3-(tri-fluoro-methyl)-phen-yl]-acetamide, C9H5Br3F3NO, (II) and 2,2,2-tri-bromo-N-(4-fluoro-phen-yl)-acetamide, C8H5Br3FNO, (III) were synthesized and their crystal structures were analysed. In the crystal structure of (I), C-Br⋯πar-yl inter-actions connect the m...