Syntheses, Structural Variation, and Characterization of a Series of Crystalline Coordination Compounds with 4-Benzene-1,2,4-triazole: Polymorph, Incomplete Spin Transition, and Single Crystal-to-Single Crystal Transformation

2013 ◽  
Vol 14 (2) ◽  
pp. 477-490 ◽  
Author(s):  
Xiang Xia Wu ◽  
You You Wang ◽  
Pan Yang ◽  
Yao Yao Xu ◽  
Jian Zhong Huo ◽  
...  
Keyword(s):  
Single Crystal ◽  
Coordination Compounds ◽  
Structural Variation ◽  
Spin Transition ◽  
Crystal Transformation

Expanding uranyl dicyanoaurate coordination polymers into the second and third dimensions

2020 ◽  
Vol 98 (7) ◽  
pp. 365-372
Author(s):  
Matthew L. Brown ◽  
Daniel B. Leznoff
Keyword(s):  
Coordination Polymer ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Solvothermal Synthesis ◽  
Linear Chain ◽  
Three Dimensional ◽  
Synthesis And Characterization ◽  
Crystal Transformation ◽  
System A

The solvothermal synthesis and characterization of a three-dimensional, interpenetrated uranyl dicyanoaurate coordination polymer, K2(UO2)2(UO2)2(Au(CN)2)2(O)2(NO3)4, from UO2(NO3)2·6H2O and KAu(CN)2 is described. The structure contains a three-dimensional (3D) lattice of planar tetranuclear uranyl–oxo–nitrate clusters connected by dicyanoaurate linkers, with the rotation of the clusters providing the increased dimensionality. The material undergoes a reversible single-crystal to single-crystal transformation on exposure to water vapour, which is taken up in the channels of the 3D system. A second uranyl dicyanoaurate coordination polymer of the form [UO2(DMSO)3(H2O)(Au(CN)2)][Au(CN)2] was structurally characterized as a linear chain of dicyanoaurate units connected by gold–gold bonds with pendant uranyl–water–DMSO adducts that are hydrogen bonded into a two-dimensional sheet. Both materials exhibit emission arising from both the uranyl moiety and the gold(I) centre and represent the first multidimensional uranyl–dicyanoaurate coordination polymers.

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.

Spin-Crossover FeII4 Squares: Two-Step Complete Spin Transition and Reversible Single-Crystal-to-Single-Crystal Transformation

2011 ◽  
Vol 123 (38) ◽  
pp. 9102-9105 ◽  
Author(s):  
Rong-Jia Wei ◽  
Qian Huo ◽  
Jun Tao ◽  
Rong-Bin Huang ◽  
Lan-Sun Zheng
Keyword(s):  
Single Crystal ◽  
Spin Crossover ◽  
Spin Transition ◽  
Crystal Transformation

Spin-Crossover FeII4 Squares: Two-Step Complete Spin Transition and Reversible Single-Crystal-to-Single-Crystal Transformation

2011 ◽  
Vol 50 (38) ◽  
pp. 8940-8943 ◽  
Author(s):  
Rong-Jia Wei ◽  
Qian Huo ◽  
Jun Tao ◽  
Rong-Bin Huang ◽  
Lan-Sun Zheng
Keyword(s):  
Single Crystal ◽  
Spin Crossover ◽  
Spin Transition ◽  
Crystal Transformation

Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

2015 ◽  
Vol 2 (2) ◽  
pp. 70-73
Author(s):  
Kannan.P ◽  
Thambidurai.S ◽  
Suresh.N
Keyword(s):  
Single Crystal ◽  
Succinic Acid ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Dta Analysis ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

Coordination Compounds of Some 3d-Transition Metal Ions with N1-[4-(4-bromo-phenylsulfonyl)-benzoyl]-N4-(4-methoxyphenyl)- thiosemicarbazide

2008 ◽  
Vol 59 (7) ◽  
Author(s):  
Madalina Angelusiu ◽  
Maria Negoiu ◽  
Stefania-Felicia Barbuceanu ◽  
Tudor Rosu
Keyword(s):  
Coordination Compounds ◽  
Magnetic Moments ◽  
Thermo Gravimetric Analysis ◽  
Electronic Spectroscopy ◽  
Transition Metal Ions ◽  
Synthesis And Characterization ◽  
Gravimetric Analysis ◽  
Thermo Gravimetric ◽  
New Compounds

The paper presents the synthesis and characterization of Cu(II), Co(II), Ni(II), Cd(II), Zn(II) and Hg(II) complexes with N1-[4-(4-bromo-phenylsulfonyl)-benzoyl]-N4-(4-methoxyphenyl)-thiosemicarbazide. The new compounds were characterized by IR, EPR, electronic spectroscopy, magnetic moments, thermo-gravimetric analysis and elemental analysis.

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