scholarly journals Formation of Giant and Small Cyclic Complexes from a Flexible Tripeptide Ligand Controlled by Metal Coordination and Hydrogen Bonds

2019 ◽  
Vol 141 (22) ◽  
pp. 8675-8679 ◽  
Author(s):  
Ryosuke Miyake ◽  
Akira Ando ◽  
Manami Ueno ◽  
Takahiro Muraoka
Keyword(s):  
Hydrogen Bonds ◽  
Metal Coordination ◽  
Cyclic Complexes

scholarly journals Correction to “Formation of Giant and Small Cyclic Complexes from a Flexible Tripeptide Ligand Controlled by Metal Coordination and Hydrogen Bonds”

2019 ◽  
Vol 141 (39) ◽  
pp. 15717-15717
Author(s):  
Ryosuke Miyake ◽  
Akira Ando ◽  
Manami Ueno ◽  
Takahiro Muraoka
Keyword(s):  
Hydrogen Bonds ◽  
Metal Coordination ◽  
Cyclic Complexes

scholarly journals Control of Intermolecular Bonds by Deposition Rates at Room Temperature: Hydrogen Bonds versus Metal Coordination in Trinitrile Monolayers

2013 ◽  
Vol 135 (2) ◽  
pp. 691-695 ◽  
Author(s):  
Thomas Sirtl ◽  
Stefan Schlögl ◽  
Atena Rastgoo-Lahrood ◽  
Jelena Jelic ◽  
Subhadip Neogi ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Room Temperature ◽  
Metal Coordination ◽  
Deposition Rates

(Pentane-2,4-dionato-κ2O,O′)(pyridin-2-amine-κN1)copper(II) and (pentane-2,4-dionato-κ2O,O′)(pyrimidin-2-amine-κN1)copper(II)

2012 ◽  
Vol 68 (3) ◽  
pp. m64-m68 ◽  
Author(s):  
Franc Perdih
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Point Of View ◽  
Metal Coordination ◽  
Π Interactions ◽  
Schiff Base Formation ◽  
Base Formation ◽  
Amine Ligand

The title compounds, [Cu(C5H7O2)2(C5H6N2)], (I), and [Cu(C5H7O2)2(C4H5N3)], (II), were prepared by the reaction of bis(pentane-2,4-dionato-κ2O,O′)copper(II) with pyridin-2-amine and pyrimidin-2-amine, respectively. From a chemical point of view, it is interesting that no Schiff base formation was observed. The compounds are isostructural, with both having a square-pyramidal coordination of the CuIIatom and intramolecular N—H...O hydrogen bonding. The additional N atom of the pyrimidin-2-amine ligand is not involved in hydrogen bonding or in metal coordination. In the crystal structure, chelate rings are involved in π–π interactions and molecules of (I) are linked togetherviaN—H...O hydrogen bonds.

Synthesis and structural characterization of a new self-assembled disulfide linked meso-tetrakis-porphyrin macromolecular array

2008 ◽  
Vol 12 (07) ◽  
pp. 845-848 ◽  
Author(s):  
Abilio J. F. N. Sobral ◽  
Licinia L. G. Justino ◽  
Ana C. C. Santos ◽  
Joana A. Silva ◽  
Cláudia T. Arranja ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Structural Characterization ◽  
Disulfide Bonds ◽  
Metal Coordination ◽  
Intermolecular Hydrogen Bonds ◽  
Coordination Bonding ◽  
Self Assembled

The synthesis of a new self-assembled porphyrin macrostructure based on disulfide bonds, is presented. This constitutes a new way to directly connect porphyrins in macromolecular arrays, to complement the usual methods of intermolecular hydrogen bonds and metal coordination bonding.

scholarly journals Combining Coordination and Hydrogen Bonds to Develop Discrete Supramolecular Metalla-Assemblies

Chemistry ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 565-576 ◽  
Author(s):  
Bruno Therrien
Keyword(s):  
Hydrogen Bonds ◽  
Metal Ions ◽  
Metal Coordination ◽  
Supramolecular Systems ◽  
Supramolecular Materials ◽  
Hydrogen Bonded Systems ◽  
Different Levels ◽  
Hydrogen Bonded

In Nature, metal ions play critical roles at different levels, and they are often found in proteins. Therefore, metal ions are naturally incorporated in hydrogen-bonded systems. In addition, the combination of metal coordination and hydrogen bonds have been used extensively to develop supramolecular materials. However, despite this win-win combination between coordination and hydrogen bonds in many supramolecular systems, the same combination remains scarce in the field of coordination-driven self-assemblies. Indeed, as illustrated in this mini-review, only a few discrete supramolecular metalla-assemblies combining coordination and hydrogen bonds can be found in the literature, but that figure might change rapidly.

Less stable tautomers form stronger hydrogen bonds: the case of water complexes

2017 ◽  
Vol 19 (36) ◽  
pp. 25086-25094 ◽  
Author(s):  
Shmuel Zilberg ◽  
Bernhard Dick
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Energy Gap ◽  
Cyclic Complexes

Hydrogen bonding in cyclic complexes of water with tautomeric pairs of molecules M0 and M1 is calculated to be stronger by more than 25% for the less stable tautomer M1 in all cases where the energy gap between the two tautomers is large (ΔE(M0 − M1) > 10 kcal mol−1).

Phenazine derivatives for optical sensing: a review

2020 ◽  
Vol 8 (33) ◽  
pp. 11308-11339 ◽  
Author(s):  
Qi Xiao-Ni ◽  
Li-Rong Dang ◽  
Wen-Jun Qu ◽  
You-Ming Zhang ◽  
Hong Yao ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Optical Sensing ◽  
Lone Pair ◽  
Metal Coordination ◽  
Optical Performance ◽  
Π Interactions ◽  
Non Covalent Interactions ◽  
Weak Forces ◽  
Covalent Interactions

Phenazine exhibiting an electron-deficient skeleton, lone pair of electrons on nitrogen atoms, and other properties (such as tunable structures, excellent optical performance and proper binding abilities) can effectively sense target ions or molecules via non-covalent interactions, involving hydrogen bonds, anion–π interactions, metal coordination and other weak forces.

scholarly journals cis-Dichlorido[2-(3,5-dimethyl-1H-pyrazol-1-yl-κN2)ethanamine-κN]palladium(II) dichloromethane monosolvate

2012 ◽  
Vol 68 (8) ◽  
pp. m1103-m1103
Author(s):  
Collins Obuah ◽  
James Darkwa ◽  
Alfred Muller
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Membered Ring ◽  
Metal Coordination ◽  
Coordination Environment ◽  
Square Planar

In the title compound, [PdCl2(C7H13N3)]·CH2Cl2, the 2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine ligand chelates the PdIIatomviatwo N atoms forming a six-membered ring resulting in a distorted square-planar metal coordination environment, highlighted by N—Pd—Cl angles of 172.63 (8) and 174.98 (9)°. In addition to N—H...Cl hydrogen bonds creating infinite chains along [001], several C—H...Cl interactions are observed in the crystal structure.

Use of molecular overlap to predict intermolecular repulsion in N... H-O hydrogen bonds

1998 ◽  
Vol 95 (3) ◽  
pp. 525-537 ◽  
Author(s):  
I. NOBELI S. L. PRICE R. J. WHEATLEY
Keyword(s):  
Hydrogen Bonds
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