Evidence for the characterisation of the C–H···π interaction as a weak hydrogen bond: toluene and chlorobenzene solvates of 2,3,7,8-tetraphenyl-1,9,10-anthyridine

Madhavi, N.; Desiraju, Gautam R.; Katz, Arie; Carrell, H. L.; Nangia, Ashwini

doi:10.1039/a705836e

Cited by 92 publications

(6 citation statements)

References 16 publications

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“…55,56 Spectroscopic studies of benzene dimers have revealed the presence of this type of H bond. 57 The existence of O-H‚‚‚π hydrogen bonds was also recognized. A recent UV and IR-UV ion-dip spectroscopy study of aryl alcohol demonstrated the presence of intra-and intermolecular π-type hydrogen bonding.…”

Section: Resultsmentioning

confidence: 99%

“…During the past decade, there have been extensive discussions concerning the existence and properties of hydrogen-bonded complexes where the π system is an acceptor of a proton. There are numerous reports about compounds whose properties have been explained on the basis of the presence of H···π bonds. , It is thought that these interactions are important to the preferential formation of some stereoisomers in coordination compounds and that they can play a central role in defining the crystal structure of some noninclusion crystals of π-containing molecules. , Spectroscopic studies of benzene dimers have revealed the presence of this type of H bond …”

Section: Resultsmentioning

confidence: 99%

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Molecular Structure and Hydrogen Bonding in Polyhydrated Complexes of Adenine: A DFT Study

et al. 2003

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Molecular structures of complexes of adenine with 12, 13, 14, and 16 water molecules were calculated using the B3LYP/6-31G(d) method. The location of water molecules on one side with respect to the adenine mean plane leads to a significant deformation of the nucleobase geometry. It results in unusual changes to the amino group geometry and a slight increase in the nonplanarity of the purine fragment of the title molecule. The formation of N-H‚‚‚O hydrogen bonds with the participation of an amino group results in a disruption of the relationship between the pyramidality of the nitrogen atom of the amino group and the length of the C-N bond. Because of the specific geometry of the H bonds, a shortening of the C(6)-N(10) bond in the adenine‚12H 2 O complex does not entail a flattening of the nitrogen atom as compared to that of isolated adenine. Our data reveal the possibility of the formation of unusual hydrogen bonds in polyhydrated complexes of adenine.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Molecular Structure and Hydrogen Bonding in Polyhydrated Complexes of Adenine: A DFT Study

et al. 2003

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“…As shown in Fig. 2, there exists one type of weak interaction, namely, the neighboring molecules interact through π-π stacking between two Bipy ligands from adjacent molecules by face to face π-π interactions with distance of 3.648 Å [16][17][18][19] to give a layer like 2D network. It is believed that the π-π stacking interactions play an important role in stabilizing the 2D network.…”

Section: Resultsmentioning

confidence: 99%

Two new oxamidato-bridged CuII-CuII complexes: Synthesis, structure, spectra, and cyclic voltammetry studies

Ren

2012

Russ J Coord Chem

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New oxamido bridged binuclear Cu II -Cu II complexes, [Cu(Oxen)Cu(Bipy) 2 ](ClO 4 ) 2 (I) and [Cu(Oxen)Cu(4,4' Bipy) 2 (H 2 O) 2 ](ClO 4 ) 2 (II) (Oxen is N,N' bis(2 aminoethyl)oxamide dianion, Bipy = 2,2' bipyridine, 4,4' Bipy = 4,4' bipyridine), have been constructed and structurally characterized by X ray crystallography. In these two complexes, each Cu 2+ ion is located in a slightly distorted square pyramidal environment. Complex I is extended to two dimensional by face to face π-π stacking with a distance of 3.648 Å. Complex II is raised to one dimensional by face to face π-π stacking and intermolecular H bonding interaction with distances of 3.651 and 2.767 Å, respectively. The cyclic voltammetric behavior of I is also inves tigated.

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“…The cations interact further through a weak C-HÁ Á ÁCl interaction in a head-to-tail fashion, forming a chain along [011]. Between the ions, namely cation-cation, anion-anion and particularly anion-cation, there are numerous C-HÁ Á Á interactions (Table 2; Laxmi Madhavi et al, 1997;Umezawa et al, 1998). In Table 2, centroids of atom groups are defined as follows: Cg1 (C1-C5/N1), Cg2 (C8-C13), Cg3 (C3/C6-C8), Cg4 (C15-C20), Cg5 (C21-C26), Cg6 (C27-C32) and Cg7 (C33-C38).…”

Section: Commentmentioning

confidence: 99%

4-[2-(4-Chlorophenyl)ethenyl]-N-methylpyridinium tetraphenylborate

Jin¹,

Zhang²,

Zhang³

et al. 2005

Acta Cryst E

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Evidence for the characterisation of the C–H···π interaction as a weak hydrogen bond: toluene and chlorobenzene solvates of 2,3,7,8-tetraphenyl-1,9,10-anthyridine

Cited by 92 publications

References 16 publications

Molecular Structure and Hydrogen Bonding in Polyhydrated Complexes of Adenine: A DFT Study

Molecular Structure and Hydrogen Bonding in Polyhydrated Complexes of Adenine: A DFT Study

Two new oxamidato-bridged CuII-CuII complexes: Synthesis, structure, spectra, and cyclic voltammetry studies

4-[2-(4-Chlorophenyl)ethenyl]-N-methylpyridinium tetraphenylborate

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