Hydrogen Bonding and Isomerism Arising from the Coordination Modes of Bridging Benzimidazole-2-thiolate Ligands in Tetranuclear Rhodium Complexes

1998 ◽  
Vol 37 (16) ◽  
pp. 3954-3963 ◽  
Author(s):  
Cristina Tejel ◽  
B. Eva Villarroya ◽  
Miguel A. Ciriano ◽  
Andrew J. Edwards ◽  
Fernando J. Lahoz ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Rhodium Complexes ◽  
Coordination Modes ◽  
Thiolate Ligands

Coordination chemistry of bidentate phosphine ligands with hydrogen-bonding arms: Picket-fence rhodium complexes

Polyhedron ◽  
2014 ◽  
Vol 69 ◽  
pp. 156-159 ◽  
Author(s):  
Ilknur Babahan ◽  
James T. Engle ◽  
Nishant Kumar ◽  
Christopher J. Ziegler ◽  
Li Jia
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Chemistry ◽  
Phosphine Ligands ◽  
Rhodium Complexes ◽  
Picket Fence ◽  
Bidentate Phosphine

Coordination preference of hexa(2-pyridyl)benzene with copper(ii) directed by hydrogen bonding

CrystEngComm ◽  
2018 ◽  
Vol 20 (35) ◽  
pp. 5233-5240 ◽  
Author(s):  
Hyunchul Kwon ◽  
Eunsung Lee
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Modes

Coordination modes of hexa(2-pyridyl)benzene ligand with copper(ii) ions were controlled by different solvents mainly due to hydrogen bonding.

scholarly journals Synthesis, Structural Characterization and Ligand-Enhanced Photo-Induced Color-Changing Behavior of Two Hydrogen-Bonded Ho(III)-Squarate Supramolecular Compounds

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1369 ◽  
Author(s):  
Wang ◽  
Ke ◽  
Feng ◽  
Ho ◽  
Chang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Uv Light ◽  
Squaric Acid ◽  
Water Molecules ◽  
Light Illumination ◽  
Supramolecular Architecture ◽  
Bridging Ligands ◽  
Coordination Modes ◽  
Oxygen Atoms ◽  
Hydrogen Bonded

Two coordination polymers (CPs) with chemical formulas, [Ho2(C4O4)2(C2O4)(H2O)8]·4H2O (1) and [Ho(C4O4)1.5(H2O)3] (2), (C4O42− = dianion of squaric acid, C2O42− = oxalate), have been synthesized and their structures were determined by single-crystal X-ray diffractometer (XRD). In compound 1, the coordination environment of Ho(III) ion is eight-coordinate bonded to eight oxygen atoms from two squarate, one oxalate ligands and four water molecules. The squarates and oxalates both act as bridging ligands with 1,2-bis-monodentate and bis-chelating coordination modes, respectively, connecting the Ho(III) ions to form a one-dimensional (1D) ladder-like framework. Adjacent ladders are interlinked via O–HO hydrogen bonding interaction to form a hydrogen-bonded two-dimensional (2D) layered framework and then arranged orderly in an AAA manner to construct its three-dimensional (3D) supramolecular architecture. In compound 2, the coordination geometry of Ho(III) is square-antiprismatic eight coordinate bonded to eight oxygen atoms from five squarate ligands and three water molecules. The squarates act as bridging ligands with two coordination modes, 1,2,3-trismonodentate and 1,2-bis-monodentate, connecting the Ho(III) ions to form a 2D bi-layered framework. Adjacent 2D frameworks are then parallel stacked in an AAA manner to construct its 3D supramolecular architecture. Hydrogen bonding interactions between the squarate ligands and coordinated water molecules in 1 and 2 both play important roles on the construction of their 3D supramolecular assembly. Compounds 1 and 2 both show remarkable ligand-enhanced photo-induced color-changing behavior, with their pink crystals immediately turning to yellow crystals under UV light illumination.

Hydrogen bonding promotes diversity in nitrite coordination modes at a single iron(II) center

2020 ◽  
Vol 73 (17-19) ◽  
pp. 2664-2676 ◽  
Author(s):  
D. M. M. Mevan Dissanayake ◽  
Brittney E. Petel ◽  
William W. Brennessel ◽  
Kara L. Bren ◽  
Ellen M. Matson
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Modes

scholarly journals Half-sandwich complexes of rhodium containing cysteine-derived ligands

2016 ◽  
Vol 45 (36) ◽  
pp. 14203-14215 ◽  
Author(s):  
María Carmona ◽  
Ricardo Rodríguez ◽  
Fernando J. Lahoz ◽  
Pilar García-Orduña ◽  
Iñaki Osante ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Crystallographic Data ◽  
Rhodium Complexes ◽  
Sandwich Complexes ◽  
Coordination Modes ◽  
The Absolute ◽  
Half Sandwich

Five distinct coordination modes have been disclosed for rhodium complexes containing modified cysteines. From the spectroscopic, theoretical and crystallographic data, the absolute configuration of the compounds has been established.

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