Organotin biocides. 4. Crystal and molecular structure of tricyclohexylstannyl 3-indolylacetate, incorporating the first monodentate carboxylate group bonded to a triorganotin(IV)

1986 ◽  
Vol 5 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Kieran C. Molloy ◽  
Thomas G. Purcell ◽  
Ekkehardt. Hahn ◽  
Herbert. Schumann ◽  
J. J. Zuckerman
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Carboxylate Group

The Crystal and Molecular Structure of catena-{Aquabis[2-methyl-2-(phenylthio)-propanoato]cadmium(II) monohydrate}

1988 ◽  
Vol 41 (11) ◽  
pp. 1769 ◽  
Author(s):  
G Smith ◽  
EJ Oreilly ◽  
CHL Kennard ◽  
TCW Mak ◽  
WH Yip ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Crystal And Molecular Structure ◽  
Chelate Ring ◽  
Propanoic Acid ◽  
Cadmium Complex ◽  
Carboxylate Group ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Carboxylate Groups

The crystal structure of the cadmium complex of 2-methyl-2-(phenylthio) propanoic acid, [ Cd (C6H5SC(CH3)2CO2)2(H2O)]. H2O has been determined by X-ray diffration and refined to a residual R 0.051 for 2725 observed reflections. Crystals are orthorhombic, space group Pbca with a 10.819(2), b 9.030(1), c 47.24(2) A and Z 8. The stereochemistry about cadmium is distorted MO6S seven-coordinate with Cd -S 2.747(2)Ǻ and a Cd -O range 2.277-2.491(5)Ǻ. Bonds are from cadmium to a water, and to four oxygens from two bidentate carboxylate groups, one of which also forms a polymer link. The same carboxylate group is also involved in a five- membered (S,O) chelate ring.

scholarly journals Novel Coordination Polymer of Cadmium (II) with L-Tryptophan

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2266 ◽  
Author(s):  
Agnieszka Czylkowska ◽  
Małgorzata Szczesio ◽  
Anna Pietrzak ◽  
Anita Raducka ◽  
Bartłomiej Rogalewicz
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure ◽  
Organic Ligand ◽  
Amino Group ◽  
Carboxylate Group ◽  
Cadmium Atom ◽  
Slow Evaporation ◽  
Supramolecular Chains ◽  
Polymeric Coordination ◽  
Oxygen Atoms

A new cadmium (II) polymeric coordination compound with tryptophan (Trp) of general formula {[Cd(L-Trp)2(H2O)Cl]∙(Trp)∙(H2O)}n was synthesized. The monocrystals of the investigated complex were obtained using the method of slow evaporation. The crystal and molecular structure was determined. The compound was crystallized in the orthorhombic P212121 space group. The cadmium atom was seven coordinates by two oxygen atoms from one bidentate-chelating carboxylate group of bridging Trp, two oxygen atoms from one bidentate-chelating carboxylate group from a monodentate organic ligand, one oxygen atom of water molecule, one nitrogen atom of the amino group from bridging Trp and one chlorine atom, which means that every tridentate Trp substituent was bridging towards one cadmium atom and bidentate chelating towards one another. The monodentate Trp is a zwitterionic molecule. The coordination led to the formation of 1D supramolecular chains entrapping water and Trp molecules.

Crystal and molecular structure of a platinum(II) complex with β-mercaptoethylamine hydrochloride

2018 ◽  
Vol 59 (1) ◽  
pp. 191-195
Author(s):  
A. N. Azizova ◽  
◽  
D. B. Tagiev ◽  
S. N. Osmanova ◽  
Sh. G. Kasumov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crystal And Molecular Structure

The crystal and molecular structure of tris(pentamethylenedithiocarbamate) chromium(III)-chloroform (1 : 2)

1981 ◽  
Vol 46 (1) ◽  
pp. 6-19 ◽  
Author(s):  
Viktor Kettman ◽  
Ján Garaj ◽  
Jaroslav Majer
Keyword(s):  
Molecular Structure ◽  
Structural Analysis ◽  
Crystal And Molecular Structure ◽  
Analysis Method ◽  
Complex Molecules ◽  
Coordination Polyhedra ◽  
X Ray ◽  
Cell Dimensions ◽  
Crustal Density ◽  
Unit Cell Dimensions

The crystal and molecular structure of [Cr(S2CN(CH2)5)3].2 CHCl3 was found by the X-ray structural analysis method. The value R 0.090 was found for 1 131 observed independent reflections. The substance crystallizes in a space group of symmetry P212121 with the following unit cell dimensions: a = 0.8675 (6), b = 1.815(2), c = 2.155(3) nm. The experimentally observed crustal density was 1.48 Mgm-3 and the value calculated for Z = 4 was 1.51 Mgm-3. The CrS6 coordination polyhedron has the shape of a trigonally distorted octahedron, where the D3 symmetry is a approximately retained. The degree of trigonal distortion expressed as the projection of the chelate S-Cr-S angle onto the plane perpendicular to the C3 pseudo axis is Φ = 41.7° (Φ = 60° for an octahedron). The skeleton of the structure formed by the complex molecules contains channels filled with chloroform molecules. The specific type of complex-chloroform interaction consists of the formation of hydrogen bonds of the chloroform protons with the fully occupied pπ-orbitals of the sulphur atoms in the coordination polyhedra. The low stability and crystal decomposition can be explained by loss of chloroform from the channels.

The Crystal and Molecular Structure of sym-fac-(1,4,7-Triazaheptane)-(S)-aspartatocobalt(III) Diperchlorate Dihydrate

1994 ◽  
Vol 59 (5) ◽  
pp. 1052-1058 ◽  
Author(s):  
Jan Ondráček ◽  
Jana Ondráčková ◽  
Jaroslav Maixner ◽  
František Jursík
Keyword(s):  
Molecular Structure ◽  
Aspartic Acid ◽  
Crystal And Molecular Structure ◽  
Heavy Atom ◽  
Membered Ring ◽  
Boat Conformation ◽  
Hydrogen Atoms ◽  
Orthorhombic System ◽  
Anisotropic Temperature ◽  
Heavy Atom Method

The crystal and molecular structure of s-fac-[Co((S)-Asp)(dien)]ClO4 . HClO4 .2 H2O (dien = 1,4,7-triazaheptane) was solved by the heavy atom method. The position parameters of the non-hydrogen atoms and their anisotropic temperature parameters were refined based on 1 726 observed reflections with a final value of R = 0.073. The substance crystallizes in the orthorhombic system in the space group P212121, Z = 4, a = 8.506(1), b = 17.171(2), c = 13.277(1) Å. The structure involves hydrogen bonds between the O2, O4 and HN2 atoms of aspartic acid and the two molecules of water. The five-membered dien chelate rings take the asymmetric envelope conformations. The five-membered ring of (S)-aspartic acid possesses the symmetric envelope conformation whereas the six-membered ring exhibits the skew boat conformation.

Determination of the structure of bis(propyldithiocarbamate)nickel(II)

1990 ◽  
Vol 55 (4) ◽  
pp. 1010-1014 ◽  
Author(s):  
Jiří Kameníček ◽  
Richard Pastorek ◽  
František Březina ◽  
Bohumil Kratochvíl ◽  
Zdeněk Trávníček
Keyword(s):  
Molecular Structure ◽  
Title Compound ◽  
Crystal And Molecular Structure ◽  
Heavy Atom ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
Planar Configuration ◽  
Compound C ◽  
Heavy Atom Method

The crystal and molecular structure of the title compound (C8H16N2NiS4) was solved by the heavy atom method and the structure was refined anisotropically to a final R factor of R = 0.029 (wR = 0.037) for 715 observed reflections. The crystal is monoclinic, space group P21/c with a = 948.3(2), b = 776.9(2), c = 1 167.4(2) pm, β = 125.14(2)°, Z = 2. The molecule contains two four-membered NiSCS rings of approximately planar configuration with the Ni atom situated at a centre of symmetry. The molecules are arranged in chains along the c-axis of the unit cell.

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