scholarly journals Synthesis and Characterization of a Binuclear Copper(II)-dipyriamethyrin Complex: [Cu2(dipyriamethyrin)(μ2-1,1-acetato)2]

Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1446
Author(s):  
James T. Brewster ◽  
Harrison D. Root ◽  
Hadiqa Zafar ◽  
Gregory D. Thiabaud ◽  
Adam C. Sedgwick ◽  
...  
Keyword(s):  
Transition Metal ◽  
Diffraction Analysis ◽  
Synthesis And Characterization ◽  
Allosteric Effect ◽  
X Ray Diffraction ◽  
Binuclear Copper ◽  
X Ray ◽  
Monomeric Complex ◽  
Binuclear Species

The reaction between dipyriamethyrin and copper(II) acetate [Cu(OAc)2] afforded what is, to our knowledge, the first transition metal-dipyriamethyrin complex. Molecular and electronic characterization of this binuclear Cu(II) complex via EPR, UV-vis, and single crystal X-ray diffraction analysis revealed marked differences between the present constructs and previously reported binuclear copper(II) hexaphyrin species. UV-vis titration analyses provided evidence for a homotropic positive allosteric effect, wherein the binuclear species is formed without significant intermediacy of a monomeric complex.

Synthesis and Characterization of Tetrakis(pentafluoroethyl)germane

Synthesis ◽  
2017 ◽  
Vol 49 (11) ◽  
pp. 2389-2393 ◽  
Author(s):  
Stefanie Pelzer ◽  
Beate Neumann ◽  
Hans-Georg Stammler ◽  
Nikolai Ignat’ev ◽  
Reint Eujen ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ir Spectroscopy ◽  
Diffraction Analysis ◽  
Spectroscopic Characterization ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Comprehensive Characterization

This paper describes the synthesis and comprehensive characterization of tetrakis(pentafluoroethyl)germane. In addition to a complete NMR spectroscopic characterization, including the rarely used 73Ge NMR spectroscopy, Ge(C2F5)4 was studied by IR spectroscopy, mass spectrometry as well as X-ray diffraction analysis. A 73Ge NMR investigation as well as an X-ray diffraction study of the related germane Ge(CF3)4 are also included.

Synthesis and characterization of the pentazolate anion cyclo-N5ˉ in (N5)6(H3O)3(NH4)4Cl

Science ◽  
2017 ◽  
Vol 355 (6323) ◽  
pp. 374-376 ◽  
Author(s):  
Chong Zhang ◽  
Chengguo Sun ◽  
Bingcheng Hu ◽  
Chuanming Yu ◽  
Ming Lu
Keyword(s):  
Thermal Analysis ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Decomposition Temperature ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Onset Decomposition Temperature ◽  
The Stability

Pentazole (HN5), an unstable molecular ring comprising five nitrogen atoms, has been of great interest to researchers for the better part of a century. We report the synthesis and characterization of the pentazolate anion stabilized in a (N5)6(H3O)3(NH4)4Cl salt. The anion was generated by direct cleavage of the C–N bond in a multisubstituted arylpentazole using m-chloroperbenzoic acid and ferrous bisglycinate. The structure was confirmed by single-crystal x-ray diffraction analysis, which highlighted stabilization of the cyclo-N5ˉ ring by chloride, ammonium, and hydronium. Thermal analysis indicated the stability of the salt below 117°C on the basis of thermogravimetry-measured onset decomposition temperature.

SYNTHESIS AND CHARACTERIZATION OF La2Ca3Cu4Oy

1999 ◽  
Vol 13 (12n13) ◽  
pp. 451-453
Author(s):  
K. JEYABALAN ◽  
L. K. KALIYAPERUMAL
Keyword(s):  
Diffraction Analysis ◽  
Lattice Parameters ◽  
Synthesis And Characterization ◽  
Orthorhombic Structure ◽  
X Ray Diffraction ◽  
X Ray

Synthesis and characterization of La 2 Ca 3 Cu 4 O y compound is reported here. The powder X-ray diffraction analysis shows that the system belongs to an orthorhombic structure and the lattice parameters are a = 3.814(4)Å, b = 3.930(5)Å and c = 34.772(3)Å.

Synthesis and Characterization of A2CaCuO5(A=Nd, Sm)

1998 ◽  
Vol 12 (11) ◽  
pp. 427-431
Author(s):  
K. Jeyabalan ◽  
L. K. Kaliyaperumal ◽  
A. Sekar ◽  
J. Srinivas
Keyword(s):  
Diffraction Analysis ◽  
Unit Cell ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Unit Cell Parameters ◽  
Orthorhombic Crystal ◽  
X Ray ◽  
Cell Parameters

Synthesis and characterization of A 2 CaCuO 5( A=Nd, Sm ) system is reported. Powder X-ray diffraction analysis shows that the compounds crystallizes in an orthorhombic crystal systems and the unit cell parameters are found to be a=6.399(9)Å, b=7.218(8) Å and c=12.167(17) Å for Nd 2 CaCuO 5 and a=5.872(8) Å, b=7.457(3) Å and c=12.682(18) Å for Sm 2 CaCuO 5.

Synthesis and Characterization of La2Ca2Cu2O7 Compound

1998 ◽  
Vol 12 (23) ◽  
pp. 991-993
Author(s):  
L. K. Kaliyaperumal ◽  
J. Srinivas ◽  
K. Jeyabalan
Keyword(s):  
Diffraction Analysis ◽  
Ambient Pressure ◽  
Lattice Parameters ◽  
Synthesis And Characterization ◽  
Orthorhombic Crystal System ◽  
X Ray Diffraction ◽  
Orthorhombic Crystal ◽  
X Ray ◽  
Crystal System

Synthesis and characterization of La 2 Ca 2 Cu 2 O 7 compound at ambient pressure is reported here. The powder X-ray diffraction analysis shows that the compound crystallizes in an orthorhombic crystal system with lattice parameters a = 5.770(4) Å, b = 5.887(7) Å and c = 27.37(2) Å.

Synthesis and characterization of ITr-protected group 11 metal trimethylsilylchalcogenolates

2020 ◽  
pp. 1-9
Author(s):  
Dickron R. Nahhas ◽  
John F. Corrigan
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Coordination Compounds ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Protected Group ◽  
Copper Coordination

This work describes the synthesis of group 11 metal trimethylsilylchalcogenolate complexes [(ITr)M-ESiMe3] stabilized by the large NHC ligand bis-1,3-tritylimidazole-2-ylidene (ITr). The thiolates and selenolates of Cu, Ag, and Au are accessed from either [(ITr)MOAc] (M = Cu, Ag) and E(SiMe3)2 or [(ITr)AuCl] and Li[ESiMe3] (E = S, Se). All complexes were characterized spectroscopically and, for the copper coordination compounds, via single crystal X-ray diffraction analysis.

Dinukleare cofaciale Metallocyclen mit Kupfer und Nickel: Synthese und Struktur / Binuclear Cofacial Metallocycles of Copper and Nickel: Synthesis and Structure

2010 ◽  
Vol 65 (3) ◽  
pp. 273-280
Author(s):  
Walter Bauer ◽  
Frank Hampel ◽  
Harald Maid
Keyword(s):  
Inclusion Compound ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Binuclear Copper ◽  
X Ray ◽  
Amide Ligands

The synthesis and characterization of six binuclear copper(II) and nickel(II) metallocycles [M2(L1−3)2] 7, starting from pyridyl-, phenyl- or naphthyl-spacered vinylogous amide ligands H2L 6, are reported. [Cu2(L3)2] 7e forms an inclusion compound [Cu2(L3)2(Py)2] 8 with two molecules of pyridine bound to the copper centers inside the cage. The structures of the metallocycles 7a, 7d, 8 were determined by X-ray diffraction analyses.

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