C-H([PI])...F INTERACTIONS
The C F bond as a conformational probe in agonist receptor interactions
... With (R)-148 in hand, a conversion to the triflate was required. Accordingly, (R)-148 was transferred through cannula into a reaction mixture containing triethylamine, DMAP and trifluoromethanesulfonic anhydride. The ...
194
2 Naphthyl 4 toluenesulfonate: supramolecular aggregation through C—H⋯O and C—H⋯π interactions
... con®guration is best regarded as a three-centered symmetrical hydrogen-bonded chelate motif (Desiraju, 1989) and is also observed in similar structures (Vembu, Nallu, Garrison & Youngs, 2003b,c,d,e,f,g; ...
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Highly fluorinated naphthalenes and bifurcated C–H⋯F–C hydrogen bonding
... illustrated its role in determining hydrogen bond geometries where halogens serve as hydrogen bond acceptors. 10,29 Thus, electrostatic potentials were calculated for hexa- and pentafluoronaphthalene to aid our ...
10
1 Napthyl 4 toluenesulfonate: supramolecular aggregation through weak C—H⋯O and C—H⋯π interactions
... The SÐC, SÐO and S O bond lengths (Table 1) are comparable with those found in related structures (Vembu, Nallu, Garrison & Youngs, 2003a, b,c, d, e, f; Vembu, Nallu, Spencer & Howard, 2003a, b, ...
8
4 Methylphenyl 4 toluenesulfonate: supramolecular aggregation through weak C—H⋯O and C—H⋯π interactions
... Aromatic sulfonates are used in monitoring the merging of lipids (Yachi et al., 1989) and in many other ®elds (Spungin et al., 1992; Tharakan et al., 1992; Alford et al., 1991; Jiang et al., 1990; Narayanan & Krakow, ...
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Phenyl 4 toluenesulfonate: supramolecular aggregation through weak C—H⋯O and C—H⋯π interactions
... Aromatic sulfonates are used in monitoring the merging of lipids (Yachi et al., 1989) and in many other fields (Spungin et al., 1992; Tharakan et al., 1992; Alford et al., 1991; Jiang et al., 1990; Narayanan & ...
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A Structural Investigation of the D2O Solvated, Acetone Solvated and Nonsolvated 1,4-Diazabicyclo[2.2.2]octane Complexes of the Half Sandwich Moiety [(ç5 -C5H5)(CO)2Fe]
... strong C–H…F intermolecular interactions and two C–H…O hydrogen bond interactions, in which the O atom of the acetone molecule acts as the hydrogen bond acceptor ...two ...
7
Enrofloxacinium oxalate
... 0.563 (2)Å,4.5 (2)° and 172 (3)°, respectively; (Cremer & Pople, 1975). Bond lengths are in normal ranges (Allen et al., 1987). The dihedral angles between the mean planes of the cyclopropyl ring and the 10-membered ...
14
Crystal structure and Hirshfeld surface analysis of (2E) 3 (3 bromo 4 fluorophenyl) 1 (3,4 dimethoxyphenyl)prop 2 en 1 one
... H H, contributing ...of C—H interactions in the crystal, shown as a pair of characteristic wings the fingerprint plot, H C/C H contacts contribute ...O ...
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C−f→ln/an Interactions and Molecular Cerium(III) Photochemistry
... (219) Sheldrick, G. M. TWINABS; University of Gottingen: Gottingen, Germany, 2008. (220) Sheldrick, G. M. SADABS; University of Gottingen: Gottingen, Germany, 2007. (221) Sheldrick, G. M., Acta Crystallogr. Sect. A: ...
335
Phenacyltriphenylphosphonium picrate: intra and interionic C—H⋯O interactions
... A solution of picric acid (0.12 g, 0.52 mmol) in methanol was added dropwise to a solution of benzoylmethylenetriphenylphosphorane, BPPY (0.20 g, 0.52 mmol), in methanol under ice-cold conditions. The mixture was stirred ...
10
A one dimensional nickel(II) coordination polymer with pyridine and isophthalate
... The water molecule and carboxylate groups form extensive hydrogen-bonding interactions (Table 2). The hydrogen- bonding interactions can be divided into two types according to the different donors. One ...
9
1. B. Ella, C. C. Iheukwumere, H. O. A. Oluma and F. A. Ella
... the C-P and C-N bonds thereby releasing carbon, phosphorous and nitrogen to the soil which could have contributed to the growth of the bacteria as observed in this ...
6
1 (3 Mesityl 3 methylcyclobutyl) 2 (piperidin 1 yl)ethanone
... A solution of 1-mesityl-1-methyl-3-(2-chloro-1-oxoethyl)cyclobutane (2.65 g, 10 mmol) and piperidine (1.70 g, 20 mmol) in absolute ethanol (50 ml) was refluxed with continuous stirring and monitoring of the course of the ...
9
4 [(4 Methylphenyl)sulfanyl]butan 2 one
... essentially coplanar, with a mean deviation of 0.023 A ˚ . In the crystal, centrosymmetrically related molecules are weakly connected into dimers by pairs of C—H O interactions. The dimers are ...
7
4 {3,5 Dimethyl 4 [(E) (4 methylphenyl)diazenyl] 1H pyrazol 1 yl}benzonitrile
... A mixture of 2,3,4-pentanetrione 3-[(4-methylphenyl)hydrazone] (0.005 mol), 4-hydrazinobenzonitrile (0.005 mol) and glacial acetic acid (2 ml) in ethanol (25 ml) was stirred and heated under reflux for 18 h. After ...
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Redetermination of 8 tosyloxyquinoline at 100 K: supramolecular aggregation through weak C–H⋯O and C–H⋯N interactions
... weak C—H···O and C—H···N ...of H···O distances (Table 2) found in (I) agrees with those found for weak C—H···O bonds (Desiraju & Steiner, ...C10—H10···O1/C11—H11···O1 ...
12
4 Dimethylaminopyridinium 2,4 dinitrophenolate: supramolecular aggregation through N—H⋯O, C—H⋯O, C—H⋯π and π–π interactions
... and C—H···O interactions. The range of H···O distances (Table 2) found in (I) agrees with those found for N—H···O (Jeffrey, 1997) and C—H···O hydrogen bonds (Desiraju ...
13
Bis(2,3 diaminopyridinium) bis(μ pyridine 2,6 dicarboxylato) κ4O2,N,O6:O6;κ4O2:O2,N,O6 bis[aqua(pyridine 2,6 dicarboxylato κ3O2,N,O6)bismuthate(III)] tetrahydrate
... weak C—H O hydrogen bonds lead to the stability of the crystal ...structure. Interactions between one C—H group of the 2,3-diaminopyridinium [(2,3-dapyH) + ] cation and ...
15
Design and Construction of a Prototype Household Water Purifier System
... From the statistical data just disclosed, it is obvious that water is the largest component of the human body. It can also be deduced from the same data, that water is involved in all human body functions. Besides aiding ...
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