Di-μ-chlorido-bis­({2-[(4-bromo­phen­yl)­imino­meth­yl]pyridine-κ2 N,N′}­chloridomercury(II))

The unique HgII ion in the title centrosymmetric dinuclear complex, [Hg2Cl4(C12H9BrN2)2], is in a distorted trigonal–bipyramidal coordination environment formed by the bis-chelating N-heterocyclic ligand, two bridging Cl atoms and one terminal Cl atom. One of the bridging Hg—Cl bonds is significantly longer than the other

Bis{2-[(4-bromo­phen­yl)imino­meth­yl]pyridine-κ2 N,N′}copper(I) tetra­phenyl­borate

In the crystal structure of the title compound, [Cu(C12H9BrN2)2](C24H20B), the copper(I) cation is coordinated by four N atoms of two crystallographically independent 2-[(4-bromo­phen­yl)imino­meth­yl]pyridine ligands within a distorted tetra­hedron

Bromidotricarbon­yl[4-chloro-N-(2-pyridyl­methyl­idene)aniline-κ2 N,N′]rhenium(I)

In the title compound, [ReBr(C12H9ClN2)(CO)3], the ReI atom has a distorted octa­hedral configuration with the three carbonyl ligands showing a facial arrangement. The main distortion of the octa­hedron is due to a small bite angle of the chelating bidentate diimine ligand [N—Re—N = 75.3 (3)°]

{2-[(4-Bromo­phen­yl)imino­meth­yl]pyridine-κ2 N,N′}diiodidozinc(II)

In the title compound, [ZnI2(C12H9BrN2)], the metal centre displays a moderately distorted tetra­hedral coordination geometry defined by two iodide anions and two N atoms of the organic ligand. The dihedral angle between the pyridine and benzene rings is 15.15 (13)°

N,N′-Bis(3-phenyl­allyl­idene)biphenyl-2,2′-diamine

In the title Schiff base, C30H24N2, the complete molecule is generated by a crystallographic twofold axis; the aromatic rings of the biphenyl unit are twisted by 60.78 (1)°. The imine double bond has a trans configuration

Di-μ-chlorido-bis­{chlorido[4-nitro-N-(pyridin-2-yl­methyl­idene-κN)aniline-κN]mercury(II)}

In the centrosymmetric dinuclear title complex, [Hg2Cl4(C12H9N3O2)2], the HgII ion is in a distorted square-pyramidal coordination environment formed by the N atoms of the diimine ligand, two bridging Cl atoms and one terminal Cl atom. One of the bridging Hg—Cl bonds is significantly longer than the other

Di-μ-chlorido-bis­(chlorido{2-[(4-ethyl­phen­yl)imino­meth­yl]pyridine-κ2 N,N′}copper(II))

The binuclear title complex, [Cu2Cl4(C14H14N2)2], is located on a crystallographic inversion centre. The CuII ion is in a distorted square-pyramid coordination environment formed by the bichelating N-heterocyclic ligand, two bridging Cl atoms and one terminal Cl atom. One of the bridging Cu—Cl bonds is significantly longer than the other

Unusual coordination of tetraphenylborate to silver(I): synthesis and X-ray crystal structure of the complex N,N'-bis[3-(2-nitrophenyl)allylidene]ethane-1,2 diamine(tetraphenylborato)silver(I)

The complex N,N’-bis[3-(2-nitrophenyl)allylidene]ethane-1,2-diamine(tetraphenylborato) silver(I), [Ag(nca2en)(BPh4)], has been synthesized and characterized by CHN analyses and ¹H-NMR, IR and UV-vis spectroscopies. Its crystal and molecular structure was determined by X-ray diffractometry from single-crystal data. The coordination geometry about silver(I) is best described as a distorted tetrahedron. The Ag center is covalently bonded to two N atoms of the Schiff base and two C atoms of tetraphenylborate. In the complex, tetraphenylborate shows an unusual behavior and acts as a bidentate ligand

Zwitterionic (4-benzyl­piperidinium-1-yl­meth­yl)phospho­nate

The title compound, C13H20NO3P, exists as a zwitterion: the phospho­nic acid group has transferred its H atom to the amino group. The piperidine ring adopts a chair conformation. Mol­ecules are linked via hydrogen bonding to form a linear chain

Dibromido{2-[(4-nitro­phen­yl)imino­meth­yl]pyridine-κ2 N,N′}zinc(II)

In the title compound, [ZnBr2(C12H9N3O2)], the ZnII ion is bonded to two Br ions and two N atoms of the diimine ligand in a distorted tetra­hedral geometry. With the exception of the Br atoms, all other atoms are disordered over two sets of sites corresponding to a 180° rotation of the mol­ecule along [02]. The refined occupancies of the components are 0.809 (2) and 0.191 (2). In addition, the crystal studied was a non-merohedral twin with a refined component ratio of 0.343 (2):0.657 (2)