scholarly journals Chirality Control in Crystalline Ni(II) Complexes of Thiophosphorylated Thioureas

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 606 ◽  
Author(s):  
Olga Kataeva ◽  
Kirill Metlushka ◽  
Zilya Yamaleeva ◽  
Kamil Ivshin ◽  
Ruzal Zinnatullin ◽  
...  

Chirality control over the formation of Ni(II) complexes with chiral thiophosphorylated thioureas was achieved via breaking the symmetry of nickel coordination geometry by the introduction of the pyridine ligand, while centrosymmetric meso-complexes are formed from racemic ligands in case of square-planar nickel coordination. Centrosymmetric heterochiral arrangement is observed in crystals of ligands themselves through N–H⋅⋅⋅S hydrogen bonds in intermolecular dimers. Molecular homochirality in tetragonal pyramidal complexes is further transferred to supramolecular homochiral arrangement via key–lock steric interactions.

IUCrData ◽  
2019 ◽  
Vol 4 (12) ◽  
Author(s):  
Kwang Ha

In the title compound, [Pd(C7H3NO4)(C10H8N2)]·H2O, the PdII cation is four-coordinated in a distorted square-planar coordination geometry defined by the two N atoms of the 2,2′-bipyridine ligand, one O atom and one N atom from the pyridine-2,6-dicarboxylate anion. The complex and solvent water molecule are linked by intermolecular hydrogen bonds. In the crystal, the complex molecules are stacked in columns along the a axis.


2007 ◽  
Vol 63 (11) ◽  
pp. m2802-m2802 ◽  
Author(s):  
Yong Hou ◽  
Hongrong Zuo ◽  
Qian Huang ◽  
Chunlin Ni

The title compound, (C5H12N)2[Ni(C4N2S2)2], is a new [Ni(mnt)2]2− salt (mnt2− is 1,2-dicyanoethene-1,2-dithiolate) with piperidinium [(PIH)+] cations. The NiII ion lies on an inversion centre and the asymmetric unit contains a (PIH)+ cation and one half of the [Ni(mnt)2]2− anion. The NiII ion exhibits a square-planar coordination geometry. In the crystal structure, weak C—H...N, C—H...S and C—H...Ni hydrogen bonds are observed between the anions and the cations.


2006 ◽  
Vol 62 (5) ◽  
pp. m1002-m1003 ◽  
Author(s):  
Shuang-Quan Zang ◽  
Yang Su ◽  
Ruo-Jie Tao

In the title ion-pair compound, (C16H13N2O2)[Pd(C3S5)2]·C3H6O, the PdIII atom exhibits square-planar coordination geometry involving four S atoms of two 2-thioxo-1,3-dithiole-4,5-dithiolate (dmit) ligands. Some weak S...S interactions and hydrogen bonds are found, resulting in a three-dimensional supramolecular network structure.


2002 ◽  
Vol 57 (7) ◽  
pp. 803-809 ◽  
Author(s):  
Gabi Müller ◽  
Martti Klinga ◽  
Peter Osswald ◽  
Markku Leskelä ◽  
Bernhard Rieger

Palladium complexes of two different P,N ligands (a phosphane-pyridine and a phosphane-imine ligand) were synthesized and characterized. Single crystal X-ray structure analyses of the palladium diiodide compounds revealed a square-planar coordination geometry at the metal center with a longer Pd-I bond in trans-position to the phosphorus atom. The chloro-methyl palladium species of the phosphane-pyridine ligand was applied for the oligomerization of ethene using a borate salt as cocatalyst.


2007 ◽  
Vol 63 (11) ◽  
pp. m2823-m2823
Author(s):  
Chun-Bo Liu ◽  
Yang Liu ◽  
Lu Lu ◽  
Jun Sun

In the title compound, {[Cu(C14H8O5)(C14H8N4)]·H2O} n , the CuII atom adopts a distorted cis-CuN2O2 square-planar coordination geometry. 4,4′-Oxydibenzoate (L) ligands link the CuII atoms, generating a helical chain. Neighbouring chains are linked through π–π interactions between pyrazino[2,3-f][1,10]phenanthroline ligands with a centroid–centroid distance of ca 3.44 Å, resulting in a two-dimensional supramolecular structure. The structure is completed by O—H...O hydrogen bonds.


2013 ◽  
Vol 69 (11) ◽  
pp. 1373-1377 ◽  
Author(s):  
Xiao-Hua Chen ◽  
Shun-Yu Chen ◽  
Chun-Ling Xie ◽  
Qiong-Jie Wu

In the CuIIcompoundcatena-poly[[copper(II)-μ-[2-({2-[2-(naphthalen-2-yloxy)-1-oxidoethylidene]hydrazin-1-ylidene}methyl)phenolato]] dimethylformamide monosolvate monohydrate], {[Cu(C19H14N2O3)]·C3H7NO·H2O}n, (I), the CuIIcation isO,N,O′-chelated by one ligand and furtherN,O-chelated by a second ligand, and exhibits a distorted square-pyramidal coordination environment. The ligand acts as an overall pentadentate bridge between two metal ions, thus forming a novel coordination polymer. In the trinuclear NiIIcompound diaquabis(1H-imidazole)bis[μ-2-oxido-N′-(1-oxido-2-phenoxyethylidene)benzohydrazidato]trinickel(II) dimethylformamide tetrasolvate, [Ni3(C15H11N2O4)2(C3H4N2)2(H2O)2]·4C3H7NO, (II), the three NiIIcations are directly linked by twotransdiazine (N—N) bridges and are strictly collinear by symmetry. The central NiIIcation, located on an inversion centre, is coordinated by two water O atoms and is furtherN,O-chelated by two 2-oxido-N′-(1-oxido-2-phenoxyethylidene)benzohydrazidate(3−) ligands in an elongated octahedral coordination geometry. The two terminal centrosymmetrically related NiIIcations are coordinated by an imidazole ligand andO,N,O′-chelated by a hydrazidate ligand in a distorted square-planar coordination geometry. Hydrogen bonds link individual molecules of (II) into a chain along [100].


IUCrData ◽  
2021 ◽  
Vol 6 (7) ◽  
Author(s):  
Wenkai Zhang ◽  
Bingguang Zhang ◽  
Qiaozhen Sun

In the title complex, [Cu(C6H4O2N)2]·2C9H6O6·2H2O, the Cu2+ ion lies on a center of inversion and coordinates with symmetry related pyridine nitrogen and carboxyl oxygen atoms from two pyridine-2-carboxylic acid anions, giving rise to a square-planar coordination geometry. There are weak axial bonds between Cu and an O atom of a symmetry-related trimesic acid moieties [Cu...O = 2.837 (2) Å] The Cu...O weak interactions and hydrogen bonds stabilize the whole structure.


IUCrData ◽  
2016 ◽  
Vol 1 (12) ◽  
Author(s):  
Detlef Selent ◽  
Anke Spannenberg ◽  
Armin Börner

The molecule of the title compound, [Rh(C42H62O3P)(C74H68O4P2]·2.7C7D8, consists of two phospharhodacyclic substructures sharing the Rh atom, which are formed by coordination/ortho-metallation of a triaryl phosphite, and by the coordination of a rigid bisphosphite, respectively. The metal displays a tetrahedrally distorted square-planar coordination geometry. Atert-butyl group shows rotational disorder over two positions with refined site occupancy of 0.561 (3):0.439 (3). Two partial-occupancy toluene solvent molecules are disordered over two orientations with site occupancies of 0.5:0.3 and 0.5:0.4, respectively. Intramolecular C—H...O hydrogen bonds are observed. In the crystal, complex molecules and toluene solvent molecules pack as alternating layers parallel to theacplane.


IUCrData ◽  
2016 ◽  
Vol 1 (7) ◽  
Author(s):  
K. Begum ◽  
M. C. Sheikh ◽  
R. Miyatake ◽  
E. Zangrando ◽  
M. S. Begum

In the title complex, [Pd(C12H17N2S3)2], the PdIIatom exhibits a square-planar coordination geometry with theN,S-chelating ligands arranged in atransconfiguration. Intramolecular C—H...S hydrogen bonds are observed. In the crystal, molecules are linked by weak C—H...N hydrogen-bond interactions, forming chains parallel to thebaxis.


Sign in / Sign up

Export Citation Format

Share Document