Orientational and Vibrational Relaxation Dynamics of Perylene and 1-Methylperylene inn-Alcohols:  Probing the Balance between van der Waals and Hydrogen-Bonding Interactions

1999 ◽  
Vol 103 (8) ◽  
pp. 999-1006 ◽  
Author(s):  
S. N. Goldie ◽  
G. J. Blanchard
Keyword(s):  
Hydrogen Bonding ◽  
Vibrational Relaxation ◽  
Van Der Waals ◽  
Relaxation Dynamics ◽  
Hydrogen Bonding Interactions

Hydrogen-bonding interactions and magnetic relaxation dynamics in tetracoordinated cobalt(ii) single-ion magnets

2019 ◽  
Vol 48 (2) ◽  
pp. 395-399 ◽  
Author(s):  
Ryoji Mitsuhashi ◽  
Satoshi Hosoya ◽  
Takayoshi Suzuki ◽  
Yukinari Sunatsuki ◽  
Hiroshi Sakiyama ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Magnetic Relaxation ◽  
Zero Field ◽  
Relaxation Dynamics ◽  
Hydrogen Bonding Interactions ◽  
Slow Magnetic Relaxation ◽  
Hydrogen Bonded

Zero field slow magnetic relaxation was observed in two cobalt(ii) complexes with 1-D chain hydrogen-bonded structures.

2-Diethylamino-6-ethyl-6-methyl-3-phenylthieno[2,3-d]pyrimidin-4(3H)-one

2006 ◽  
Vol 62 (7) ◽  
pp. o2862-o2863
Author(s):  
Zheng-Dong Fang ◽  
Ming-Wu Ding
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Stacking Interactions ◽  
Intermolecular Hydrogen Bonding ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking

In the title compound, C19H23N3OS, the two fused rings of the thieno[2,3-d]pyrimidin-4(3H)-one system are almost coplanar. The packing of the molecules in the crystal structure is determined by van der Waals forces. No intermolecular hydrogen-bonding interactions or π–π stacking interactions are present in the crystal structure.

The Role of Hydrogen-Bonding Interactions in the Ultrafast Relaxation Dynamics of the Excited States of 3- and 4-Aminofluoren-9-ones

ChemPhysChem ◽  
2009 ◽  
Vol 10 (17) ◽  
pp. 2995-3012 ◽  
Author(s):  
Jahur A. Mondal ◽  
Vaishali Samant ◽  
Mahendra Varne ◽  
Ajay K. Singh ◽  
Tapan K. Ghanty ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Excited States ◽  
Relaxation Dynamics ◽  
Ultrafast Relaxation ◽  
Hydrogen Bonding Interactions

scholarly journals Crystal structure offac-tricarbonyl(cyclohexyl isocyanide-κC)(quinoline-2-carboxylato-κ2N,O)rhenium(I)

2016 ◽  
Vol 72 (3) ◽  
pp. 358-362 ◽  
Author(s):  
Charalampos Triantis ◽  
Antonio Shegani ◽  
Christos Kiritsis ◽  
Catherine Raptopoulou ◽  
Vassilis Psycharis ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Sphere ◽  
Title Compound ◽  
Van Der Waals ◽  
Carbonyl Ligands ◽  
Π Interactions ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Van Der Waals Contacts

In the title compound, [Re(C10H6NO2)(C7H11N)(CO)3], the ReIatom is coordinated by three carbonyl ligands in a facial arrangement and by the N, O and C atoms from a chelating quinaldate anion and a monodentate isocyanide ligand, respectively. The resultant C4NO coordination sphere is distorted octahedral. A lengthening of the axial Re—CO bondtransto the isocyanide ligand is indicative of thetranseffect. Individual complexes are stacked into rods parallel to [001] through displaced π–π interactions. Weak C—H...O hydrogen-bonding interactions between the rods lead to the formation of layers parallel to (010). These layers are stacked along [010] by C—H...H—C van der Waals contacts.

scholarly journals Crystal structure of di-μ-iodido-bis[bis(acetonitrile-κN)copper(I)]

2015 ◽  
Vol 71 (11) ◽  
pp. m189-m190
Author(s):  
Eva Rebecca Barth ◽  
Christopher Golz ◽  
Michael Knorr ◽  
Carsten Strohmann
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Crystal Packing ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
Tetrahedral Coordination ◽  
Coordination Environment ◽  
Hydrogen Bonding Interactions ◽  
Distorted Tetrahedral Coordination

The title compound, [Cu2I2(CH3CN)4], exhibits a centrosymmetric Cu2I2core [Cu...Cu distance = 2.7482 (11) Å], the CuIatoms of which are further coordinated by four molecules of acetonitrile. The CuIatom has an overall distorted tetrahedral coordination environment evidenced byL—Cu—Langles (L= N or I) ranging from 100.47 (10) to 117.06 (2)°. The coordination geometries of the acetonitrile ligands deviate slightly from linearity as shown by Cu—N—C angles of 167.0 (2) and 172.7 (2)°. In the crystal, there are no significant hydrogen-bonding interactions present, so the crystal packing seems to be formed predominantly by van der Waals forces.

scholarly journals Crystal structure of di-μ-iodido-bis[(dimethyl sulfoxide-κO)(triphenylphosphane-κP)copper(I)]

2014 ◽  
Vol 70 (12) ◽  
pp. 547-549
Author(s):  
Rodolphe Kinghat ◽  
Michael Knorr ◽  
Yoann Rousselin ◽  
Marek M. Kubicki
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Dimethyl Sulfoxide ◽  
Title Compound ◽  
Van Der Waals ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Hydrogen Bonding Interactions ◽  
Van Der Waals Radii

The centrosymmetric dinuclear title compound, [Cu2I2(C2H6OS)2(C18H15P)2], represents the first example of a CuI complex ligated by anO-bound dimethyl sulfoxide ligand. In the crystal, the two tetrahedrally coordinated CuIatoms are bridged by two μ2-iodido ligands in an almost symmetrical rhomboid geometry. The loose Cu...Cu contact of 2.9874 (8) Å is longer than the sum of the van der Waals radii of two Cu atoms (2.8 Å), excluding a significant cupriophilic interaction in the actual dimer. C—H...O and C—H...I hydrogen bonding interactions as well as C—H...π(aryl) interactions stabilize the three-dimensional supramolecular network.

Theoretical study of hydrogen bonding interactions in substituted nitroxide radicals

2021 ◽  
Author(s):  
Thufail M. Ismail ◽  
Neetha Mohan ◽  
P. K. Sajith
Keyword(s):  
Hydrogen Bonding ◽  
Interaction Energy ◽  
Electrostatic Potential ◽  
Molecular Electrostatic Potential ◽  
Theoretical Study ◽  
Nitroxide Radicals ◽  
Hydrogen Bonding Interactions ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Interaction energy (Eint) of hydrogen bonded complexes of nitroxide radicals can be assessed in terms of the deepest minimum of molecular electrostatic potential (Vmin).

scholarly journals Circular linkage of intramolecular multi-hydrogen bonding frameworks through nucleophilic substitutions of β-dicarbonyls onto cyanuric chloride and subsequent tautomerisation

RSC Advances ◽  
2020 ◽  
Vol 10 (64) ◽  
pp. 39033-39036
Author(s):  
Ayano Awatani ◽  
Masaaki Suzuki
Keyword(s):  
Hydrogen Bonding ◽  
Cyanuric Chloride ◽  
Nucleophilic Substitutions ◽  
Hydrogen Bonding Interactions ◽  
Triazine Derivatives

Triply β-dicarbonyl-embedded 1,3,5-triazine derivatives result in formation of circular linkage of resonance-assisted hydrogen bonding interactions, which can be regarded as well-delocalized resonance hybrids.

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