Bis(cyclopentenylacetato)tetramethyldistannoxane dimer

2006 ◽  
Vol 62 (5) ◽  
pp. m1167-m1169 ◽  
Author(s):  
Aftab Ahmad ◽  
Azim Khan ◽  
Saqib Ali ◽  
Masood Parvez
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Narrow Range ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
A Value ◽  
Centrosymmetric Dimers ◽  
Distorted Trigonal Bipyramidal

The crystal structure of the title compound, tetra-μ2-(cyclopent-2-enyl)acetato-1:2κ2 O:O′;1:3κ2 O:O′;2:4κ2 O:O′;3:4κ2 O:O′-octamethyl-1κ2 C,2κ2 C,3κ2 C,4κ2 C-di-μ3-oxo-1:2:3κ3 O;2:3:4κ3 O-tetratin(IV), [Sn4(CH3)8(C7H9O2)4O2], is composed of discrete centrosymmetric dimers lying about inversion centres. The cyclopentenylacetate ligand shows different modes of coordination with Sn, as a result of which the central Sn2O2 core is fused with two four-membered (Sn2O2) and two six-membered (Sn2O3C) rings. The endocyclic Sn atoms are six-coordinate in a skew-trapezoidal bipyramidal environment. The exocyclic Sn atoms are five-coordinate and show distorted trigonal–bipyramidal geometry. The Sn—C distances lie in a very narrow range [2.095 (4)–2.113 (4) Å], while the Sn—O distances range between 2.030 (3) and 2.280 (3) Å for strong bonds and a value of 2.654 (3) Å for the relatively weak Sn—O bond.

(N,N,N′,N′′,N′′-Pentamethyldiethylenetriamine-κ3 N,N′,N′′)(trithiocyanurato-κ2 N,S)zinc(II)

2007 ◽  
Vol 63 (3) ◽  
pp. m725-m727
Author(s):  
Jaromír Marek ◽  
Zdeněk Trávníček ◽  
Šárka Čermáková
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Bidentate Ligand ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Centrosymmetric Dimers ◽  
Close Contacts

The structure of the title compound, [Zn(C9H23N3)(C3HN3S3)], consists of discrete molecules connected by N—H...S hydrogen bonds into centrosymmetric dimers. The ZnII atom is pentacoordinated in a deformed trigonal–bipyramidal geometry by three N atoms of a tridentate N,N,N′,N′′,N′′-pentamethyldiethylenetriamine ligand, and one S and one N atoms of a trithiocyanurate dianion bonded as a bidentate ligand. The crystal structure is further stabilized by close contacts of the types C—H...S and C—H...N.

scholarly journals Crystal structure ofcatena-poly[[chlorido(4,4′-dimethyl-2,2′-bipyridine-κ2N,N′)copper(II)]-μ-chlorido]

2015 ◽  
Vol 71 (6) ◽  
pp. 624-627
Author(s):  
Rafaela Nita ◽  
Jeffrey R. Deschamps ◽  
Scott A. Trammell ◽  
D. Andrew Knight
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Bipyridine Ligand ◽  
Cl Atoms ◽  
Cl Atom ◽  
Distorted Trigonal Bipyramidal

The title compound, [CuCl2(C12H12N2)]n, was obtainedviaa DMSO-mediated dehydration of Cu(4,4′-dimethyl-2,2′-bipyridine)copper(II)·0.25H2O. The central CuIIatom is coordinated in a distorted trigonal–bipyramidal geometry by two N atoms of a chelating 4,4′-dimethyl-2,2′-bipyridine ligand [average Cu—N = 2.03 (3) Å] and three Cl atoms, one terminal with a short Cu—Cl bond of 2.2506 (10) Å, and two symmetry-equivalent and bridging bonds. The bridging Cl atom links the CuIIions into chains parallel to [001]viaone medium and one long Cu—Cl bond [2.3320 (10) and 2.5623 (9) Å]. The structure displays both inter- and intramolecular C—H...Cl hydrogen bonding.

scholarly journals Dibromido(dimethyl sulfoxide-κO)(6-methyl-2,2′-bipyridine-κ2N,N′)cadmium

2012 ◽  
Vol 68 (8) ◽  
pp. m1124-m1124 ◽  
Author(s):  
Sadif A. Shirvan ◽  
Sara Haydari Dezfuli
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Title Compound ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Bipyridine Ligand ◽  
Distorted Trigonal Bipyramidal

In the title compound, [CdBr2(C11H10N2)(C2H6OS)], the CdIIatom is five-coordinated in a distorted trigonal–bipyramidal geometry by two N atoms from a 6-methyl-2,2′-bipyridine ligand, one O atom from a dimethyl sulfoxide ligand and two Br atoms. An intramolecular C—H...O hydrogen bond occurs. The crystal structure is stabilized by C—H...Br hydrogen bonds and π–π contacts between the pyridine rings [centroid–centroid distances = 3.582 (5) and 3.582 (5) Å].

Neue Oxopnictate AI3MVO4: Darstellung und Kristallstruktur von A3AsO4 (A = K, Rb, Cs) und K3BiO4 / New Oxopnictates AI3MVO4: Synthesis and Crystal Structure of A3AsO4 (A = K, Rb, Cs) and K3BiO4

2002 ◽  
Vol 57 (6) ◽  
pp. 599-604 ◽  
Author(s):  
Franziska Emmerling ◽  
Mamdouh Idilbi ◽  
Caroline Röhr
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Crystal Structures ◽  
Close Packing ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Centrosymmetric Dimers ◽  
Distorted Trigonal Bipyramidal

Abstract The title compounds have been synthesized via oxidation of the elemental pnicogenes (M = As, Bi) with the hyperoxides AO2 (A = K, Rb, Cs) and their crystal structures were determined on the basis of single crystal X-ray data. In K3AsO4 (orthorhombic, Cccm, a = 1060:1(1), b = 1135:2(1), c = 1694:0(2) pm, Z = 16) and Cs3AsO4(orthorhombic, Pnma, a = 1254:3(2), b = 902:9(2), c = 658:5(3) pm, Z = 4) isolated tetrahedra [AsO4]3- with distances As-O between 167.0 and 170.5 pm are present, which are arranged in a nearly cubic close packing. The structure of K3BiO4 (triclinic, P1̄, a = 643:18(6), b = 657:27(6), c = 762:41(7) pm, α = 101:724(2)°, β = 96:472(2)°, γ = 105:465(2)°, Z = 2) contains centrosymmetric dimers [O3BiO2BiO3]6-, in which the Bi(V) atoms are surrounded by five O atoms in a distorted trigonal bipyramidal geometry with distances Bi-O in the range of 199.5 to 233.1 pm.

Bis(cyclopentenylacetato)tetraethyldistannoxane dimer

2006 ◽  
Vol 62 (5) ◽  
pp. m1088-m1090
Author(s):  
Aftab Ahmad ◽  
Azim Khan ◽  
Saqib Ali ◽  
Masood Parvez
Keyword(s):  
Molecular Structure ◽  
Title Compound ◽  
Narrow Range ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Centrosymmetric Dimers

The molecular structure of the title compound, tetra-μ2-(cyclopent-2-enyl)acetato-1:2κ2 O:O′;1:3κ2 O:O′;2:4κ2 O:O′;3:4κ2 O:O′-octaethyl-1κ2 C,2κ2 C,3κ2 C,4κ2 C-di-μ3-oxo-1:2:3κ3 O;2:3:4κ3 O-tetratin, [Sn4(C2H5)8(C7H9O2)4O2], is composed of two independent centrosymmetric dimers lying about inversion centers. In each dimer, the central Sn2O2 core is fused with two four-membered (Sn2O2) and two six-membered (Sn2O3C) rings. The endocyclic Sn atoms are six-coordinate in a skew-trapezoidal bipyramidal environment. The exocyclic Sn atoms are five-coordinate and show disotorted trigonal–bipyramidal geometry. The cyclopentenylacetate ligand shows different modes of coordination with tin. In both dimers, the Sn—C distances lie in a very narrow range [2.118 (4)–2.134 (4) Å], while the Sn—O distances range between 2.042 (2) and 2.314 (3) Å for strong bonds and between 2.638 (3) and 2.658 (3) Å for relatively weaker Sn—O bonds.

scholarly journals Crystal structure of [tris(pyridin-2-ylmethyl)amine-κ4N]copper(II) bromide

2016 ◽  
Vol 72 (6) ◽  
pp. 801-804 ◽  
Author(s):  
Emma C. Bridgman ◽  
Megan M. Doherty ◽  
Kaleigh A. Ellis ◽  
Elizabeth A. Homer ◽  
Taylor N. Lashbrook ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Outer Sphere ◽  
Asymmetric Unit ◽  
Positional Disorder ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Counter Ion ◽  
Amine Ligand ◽  
Distorted Trigonal Bipyramidal

In the asymmetric unit of the title compound, [CuBr(C18H18N4)]Br, there are three crystallographically independent cations. One of the cations exhibits positional disorder of the pyridin-2-ylmethyl groups over two sets of sites with refined occupancies of 0.672 (8) and 0.328 (8). The outer-sphere bromine counter-ion is severely disordered over multiple sites. In each cation, the CuIIion is coordinated by the four N atoms of the tris(pyridin-2-ylmethyl)amine ligand and one bromine and adopts a slightly distorted trigonal–bipyramidal geometry.

μ-Trithiocyanurato-κ4 N 1,S 2:N 3,S 4-bis[(N,N,N′,N′′,N′′-pentamethyldiethylenetriamine-κ3 N,N′,N′′)zinc(II)] perchlorate monohydrate

2007 ◽  
Vol 63 (3) ◽  
pp. m795-m797
Author(s):  
Zdeněk Trávníček ◽  
Jaromír Marek ◽  
Šárka Čermáková
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Water Molecules ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the title compound, [Zn2(C3N3S3)(C9H23N3)2]ClO4·H2O, the dinuclear ZnII metal centres are bridged by a trithiocyanurate(3-) anion (ttc), with each centre having a distorted trigonal bipyramidal geometry and bonded to three diethylenetriamine N atoms, and an S and an N atom of ttc. The crystal structure is stabilized by O—H...O, O—H...S, C—H...S and C—H...O interactions connecting the cations, the ClO4 − anions and the water molecules.

Die Kristallstruktur von Kalium-bis(hexamethylentetramin)-tris-(isothiocyanato)cuprat(II)-dihydrat, K[Cu(C6H12N4)2(NCS)3] · 2 H2O, einem trigonal-bipyramidalen Kupfer(II) -Komplex / The Crystal Structure of Potassium-bis(hexamethylenetetramine)-tris-(isothiocyanato) cuprate(II )-dihydrate, K[Cu(C6H12N4)2(NCS)3] · 2 H2O, a Trigonal Bipyramidal Cupric Complex

1981 ◽  
Vol 36 (5) ◽  
pp. 649-650 ◽  
Author(s):  
Joachim Pickardt
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Structure Analysis ◽  
Title Compound ◽  
X Ray ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Cupric Acetate

From an aqueous solution of cupric acetate containing an excess of KSCN and hexamethy- lenetetramine crystals of the title compound could be obtained. An X-ray structure analysis showed that the cuprate(II) anion has trigonal bipyramidal geometry. The three equatorial positions are occupied by NCS groups, the axial positions by the hexamethylenetetramine molecules

scholarly journals Di-μ-aqua-bis{diaqua[μ-4-({4-[bis(2-hydroxyethyl)amino]-6-chloro-1,3,5-triazin-2-yl}amino)benzenesulfonato]sodium(I)}

2012 ◽  
Vol 68 (6) ◽  
pp. m847-m848
Author(s):  
Mei Zhang ◽  
Fu-Yu Sun ◽  
Gui-Zhe Zhao ◽  
Ya-Qing Liu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the dinuclear title compound, [Na2(C13H15ClN5O5S)2(H2O)6] n , two Na+ cations, disposed about a centre of inversion, are linked by two bridging water molecules. The coordination geometry is based on an O5 donor set defined by four water molecules and a 4-aminobenzenesulfonate O atom in a distorted trigonal–bipyramidal geometry. In the crystal, significant O—H...O, O—H...N and N—H...O hydrogen bonds lead to the formation of a three-dimensional architecture.

scholarly journals Synthesis and crystal structure of bis(μ-2-methylbenzenethiolato-κ2S:S)bis[methyl(2-methylbenzenethiolato-κS)indium(III)]

2017 ◽  
Vol 73 (4) ◽  
pp. 481-483
Author(s):  
Glen G. Briand ◽  
Andreas Decken ◽  
Courtney M. Dickie ◽  
Gregory MacNeil
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Synthesis And Crystal Structure ◽  
Polymeric Structure ◽  
One Dimensional ◽  
Trigonal Bipyramidal ◽  
Ring Core ◽  
Distorted Trigonal Bipyramidal

The dinuclear title compound, [In2(CH3)2(C7H7S)4] or [Me(2-MeC6H4S)In-μ-(2-MeC6H4S)2InMe(2-MeC6H4S)], was prepared from the 1:2 reaction of Me3In and 2-MeC6H4SH in toluene. Its crystal structure exhibits a four-membered In2S2ring coreviabridging (2-MeC6H4S) groups. The dimeric units are further associated into a one-dimensional polymeric structure extending parallel to theaaxisviaintermolecular In...S contacts. The In atoms are then in distorted trigonal–bipyramidal CS4bonding environments.

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