2-Methyl-substituted monotetrazoles in copper(ii) perchlorate complexes: manipulating coordination chemistry and derived energetic properties

2019 ◽  
Vol 43 (2) ◽  
pp. 609-616 ◽  
Author(s):  
Lukas Zeisel ◽  
Norbert Szimhardt ◽  
Maximilian H. H. Wurzenberger ◽  
Thomas M. Klapötke ◽  
Jörg Stierstorfer
Keyword(s):  
Coordination Chemistry ◽  
Coordination Sphere ◽  
Coordination Compounds ◽  
Metal Center ◽  
Reaction Conditions ◽  
Energetic Properties

Several new energetic coordination compounds (ECC) have been prepared using two 2-methyl-substituted tetrazoles. By simply changing the reaction conditions, the coordination sphere of the metal center can be manipulated in order to obtain different complexes with varying energetic properties.

Influence of the metal center on the morphology of coordination compounds thin films

1999 ◽  
Vol 101 (1-3) ◽  
pp. 140-141 ◽  
Author(s):  
F. Toffolo ◽  
M. Brinkmann ◽  
O. Greco ◽  
F. Biscarini ◽  
C. Taliani ◽  
...  
Keyword(s):  
Thin Films ◽  
Coordination Compounds ◽  
Metal Center

Coordination chemistry of mercury(ii) halide complexes: a combined experimental, theoretical and (ICSD & CSD) database study on the relationship between inorganic and organic units

2020 ◽  
Vol 49 (34) ◽  
pp. 11859-11877 ◽  
Author(s):  
Ali Samie ◽  
Alireza Salimi ◽  
Jered C. Garrison
Keyword(s):  
Coordination Chemistry ◽  
Coordination Sphere ◽  
Predominant Role ◽  
Database Study ◽  
Halide Complexes ◽  
The Relationship ◽  
Inorganic And Organic

The coordination sphere can be influenced by many factors of inorganic and organic units. Despite the predominant role of inorganic unit in coordination sphere determination, organic unit can change it via one major or cooperativity of minor effects.

scholarly journals Ligand-Based H2 Transfer with Dihydrazonopyrrole Complexes of Nickel

2020 ◽  
Author(s):  
Andrew McNeece ◽  
Kate Jesse ◽  
Alexander S. Filatov ◽  
Joseph Schneider ◽  
John Anderson
Keyword(s):  
Coordination Sphere ◽  
Computational Analysis ◽  
Metal Center ◽  
Electron Storage ◽  
Precise Control ◽  
Secondary Coordination Sphere ◽  
Proton Donors ◽  
Redox Change

Biology uses precise control over proton, electron, H-atom, or H<sub>2</sub> transfer to mediate challenging reactivity. While synthetic complexes have made incredible strides in replicating secondary coordination electron or proton donors, there are comparatively fewer examples of ligands that can mediate both proton and electron storage. Rarer still are ligands that can store full H<sub>2</sub> equivalents. Here we report a dihydrazonopyrrole Ni complex where an H<sub>2</sub> equivalent can be stored on the ligand periphery without any redox change at the metal center. This ligand-based storage of H<sub>2</sub> can be leveraged for catalytic hydrogenations. Kinetic and computational analysis suggests a rate determining H<sub>2</sub> binding step followed by comparatively facile H–H scission to hydrogenate the ligand. This system is an unusual example where a synthetic system can mimic biology’s ability to mediate H<sub>2</sub> transfer via secondary coordination sphere-based processes.

Synthesis and coordination chemistry of silver(I), gold(I) and gold(III) complexes with picoline-functionalized benzimidazolin-2-ylidene ligands

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mareike C. Jahnke ◽  
F. Ekkehardt Hahn
Keyword(s):  
Coordination Chemistry ◽  
Silver Oxide ◽  
Lithium Bromide ◽  
Metal Center ◽  
Molecular Structures ◽  
Transfer Reactions ◽  
Silver Complexes ◽  
X Ray Diffraction ◽  
X Ray ◽  
Halide Exchange

Abstract The reactions of N-alkyl-N′-picolyl-benzimidazolium bromides or N,N′-dipicolyl-benzimidazolium bromide with silver oxide yielded the silver dicarbene complexes of the type [Ag(NHC)2][AgBr2] 1–4 (NHC = picoline-functionalized benzimidazolin-2-ylidene). The silver complexes 1–4 have been used in carbene transfer reactions to yield the gold(I) complexes of the type [AuCl(NHC)] 5–8 in good yields. A halide exchange at the metal center of complexes 5–8 with lithium bromide yielded the gold bromide complexes 9–12. Finally, the oxidation of the gold(I) centers in complexes 9–12 with elemental bromine gave the gold(III) complexes of the type [AuBr3(NHC)] 13–16. Molecular structures of selected Au(I) and Au(III) complexes have been determined by X-ray diffraction studies.

scholarly journals When Stereochemistry Raised Its Ugly Head in Coordination Chemistry—An Appreciation of Howard Flack

Chemistry ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 759-776
Author(s):  
Edwin C. Constable ◽  
Catherine E. Housecroft
Keyword(s):  
Organic Chemistry ◽  
Coordination Chemistry ◽  
Absolute Configuration ◽  
Coordination Compounds ◽  
Routine Method ◽  
Absolute Determination ◽  
Chiral Compounds ◽  
The Absolute

Chiral compounds have played an important role in the development of coordination chemistry. Unlike organic chemistry, where mechanistic rules allowed the establishment of absolute configurations for numerous compounds once a single absolute determination had been made, coordination compounds are more complex. This article discusses the development of crystallographic methods and the interplay with coordination chemistry. Most importantly, the development of the Flack parameter is identified as providing a routine method for determining the absolute configuration of coordination compounds.

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