Construction of crystal structures of metal(II)–benzoates (M=Mn, Ni, Co, Cu, Zn, and Cd) and 1,2-bis(4-pyridyl)ethane: Effects of metal coordination modes and their catalytic activities

2009 ◽  
Vol 362 (11) ◽  
pp. 4119-4126 ◽  
Author(s):  
Soo Hyun Kim ◽  
Byeong Kwon Park ◽  
Young Joo Song ◽  
Seung Man Yu ◽  
Hyo Geun Koo ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Metal Coordination ◽  
Coordination Modes ◽  
Catalytic Activities

Synthesis, crystal structures and catalytic activities of palladium complexes with coumarin-functionalised N-heterocyclic carbene ligand0073

2021 ◽  
pp. 108755
Author(s):  
Ceren Akpunar ◽  
Namık Özdemir ◽  
Mert Olgun Karataş ◽  
Bülent Alıcı ◽  
İsmail Özdemir Resourches
Keyword(s):  
Crystal Structures ◽  
Palladium Complexes ◽  
Catalytic Activities

scholarly journals Intermolecular interaction energies in transition metal coordination compounds

CrystEngComm ◽  
2015 ◽  
Vol 17 (48) ◽  
pp. 9300-9310 ◽  
Author(s):  
Andrew G. P. Maloney ◽  
Peter A. Wood ◽  
Simon Parsons
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Crystal Structures ◽  
Intermolecular Interaction ◽  
Coordination Compounds ◽  
Metal Coordination ◽  
Interaction Energies

The PIXEL method has been parameterised and validated for transition metals, extending its applicability from ~40% to ~85% of all published crystal structures.

scholarly journals The structural chemistry of zinc(ii) and nickel(ii) dithiocarbamate complexes

2021 ◽  
Vol 19 (1) ◽  
pp. 974-986
Author(s):  
Tanzimjahan A. Saiyed ◽  
Jerry O. Adeyemi ◽  
Damian C. Onwudiwe
Keyword(s):  
Complex Formation ◽  
Metal Ions ◽  
Structural Properties ◽  
Binding Sites ◽  
Biological Systems ◽  
Structural Chemistry ◽  
Metal Coordination ◽  
Nickel Ions ◽  
Coordination Modes ◽  
Biomedical Fields

Abstract Dithiocarbamate complexes are of immense interest due to their diverse structural properties and extensive application in various areas. They possess two sulfur atoms that often act as the binding sites for metal coordination in a monodentate, bidentate, or anisodentate fashion. These different coordination modes enhance the possibility for complex formation and make them useful in different areas especially in biomedical fields. A synergy exists in the metal ions and dithiocarbamate moieties, which tends to exert better properties than the respective individual components of the complex. These improved properties have also been attributed to the presence of the C–S bonds. Zinc and nickel ions have been majorly found to bind to the dithiocarbamate in bidentate modes, and consequently different geometries have resulted from this interaction. The aim of this review is to present some studies on the synthesis, structural chemistry, and the relevance of zinc and nickel dithiocarbamates complexes especially in biological systems.

Ruthenium(ii) and palladium(ii) homo- and heterobimetallic complexes: synthesis, crystal structures, theoretical calculations and biological studies

2019 ◽  
Vol 48 (42) ◽  
pp. 15869-15887 ◽  
Author(s):  
Banafshe Askari ◽  
Hadi Amiri Rudbari ◽  
Nicola Micale ◽  
Tanja Schirmeister ◽  
Thomas Efferth ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Proliferative Activity ◽  
Theoretical Calculations ◽  
Coordination Modes ◽  
Heterobimetallic Complexes ◽  
Biological Studies

Four Ru–Pd heterobimetallic complexes, each one in two different coordination modes (NNSS and NS) were prepared of dialkyldithiooxamidate ligands. All stable NS complexes showed anti-proliferative activity.

scholarly journals Complexes with macrocyclic ligands. II. The crystal structures of HgCl2•18-crown-6 and CdCl2•18-crown-6, and the FAB mass spectrum of HgCl2•18-crown-6

1984 ◽  
Vol 62 (2) ◽  
pp. 332-335 ◽  
Author(s):  
Christopher Robin Paige ◽  
Mary Frances Richardson
Keyword(s):  
Mass Spectrum ◽  
Crystal Structures ◽  
Macrocyclic Ligands ◽  
Metal Coordination ◽  
Chlorine Atoms ◽  
Space Group

HgCl2 and CdCl2 form 1:1 complexes with 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6). The complexes are isostructural. The metal coordination is hexagonal bipyramidal, with chlorine atoms strongly coordinated in the axial positions and the 18-crown-6 in the equatorial place. The symmetry of the complex is crystallographically required to be [Formula: see text], but is very nearly [Formula: see text]. The Hg—Cl, Hg—O, Cd—Cl, and Cd—O distances are 2.314(1), 2.825(4), 2.3645(5), and 2.752(1) Å, respectively. Crystals of HgCl2•18-crown-6 are rhombohedral, space group [Formula: see text], a = 7.746(2) Å, α = 95.26(3)°, Z = 1 unit of HgCl2C12H24O6, R = 0.026 for 543 independent reflections with θ < 25°, I > 3σ(I). Crystals of CdCl2•18-crown-6 are also rhombohedral, space group [Formula: see text], a = 7.712(3) Å, α = 95.57(2)°, Z = 1 unit of CdCl2C12H24O6, R = 0.022 for 534 independent reflections with θ < 25°, I > 3σ(I).

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