THE ENERGY OF HYDROGEN BONDING IN THE SYSTEM: ACETONE–CHLOROFORM

1960 ◽  
Vol 38 (5) ◽  
pp. 652-655 ◽  
Author(s):  
A. N. Campbell ◽  
E. M. Kartzmark
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Carbon Tetrachloride ◽  
Enthalpies Of Mixing

It is shown that(1) acetone and chloroform form a compound stable in the solid state;(2) acetone and carbon tetrachloride do not form a compound;(3) the enthalpies of mixing of acetone and chloroform and of acetone and carbon tetrachloride have been determined;(4) from these figures the energy of hydrogen bonding in the acetone–chloroform system is evaluated as 2.7 kcal ± 0.1.

Infrared Absorption Spectra of Some Hydroxy Compounds in the 3 Micron Region

1961 ◽  
Vol 14 (2) ◽  
pp. 211 ◽  
Author(s):  
JS Cook ◽  
IH Reece
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Carbon Tetrachloride ◽  
Absorption Spectra ◽  
Infrared Absorption ◽  
Butyl Phenol ◽  
Infrared Absorption Spectra ◽  
Sterically Hindered ◽  
Hydroxy Compounds

Infrared absorption spectra are reported in the region 2.6 to 3.8 microns for the solid state and for solutions in carbon tetrachloride of 10 sterically hindered hydroxy compounds. Absorption types vary from that of 2,4,6-tri-t-butyl phenol, where the OH group is completely " free " in both states, to that of 3,5-diaceto-p-cresol where the bands are diffuse and are centred about 3.4 microns corresponding to very strong hydrogen bonding. Deuteration studies suggest that splitting of the free OH band in several cases may arise from azimuthal orientations of the OH group and for tri-cyclohexyl carbinol -ΔH for this equilibrium has been estimated at 1 kcal/g-mole.

Molecular Association of Hydrogen Bonding Solutes, o-, m-, and p-Cresol, in Carbon Tetrachloride

1974 ◽  
Vol 52 (4) ◽  
pp. 653-660 ◽  
Author(s):  
Earl M. Woolley ◽  
Dennis S. Rushforth
Keyword(s):  
Hydrogen Bonding ◽  
Carbon Tetrachloride ◽  
Least Squares ◽  
Molecular Association ◽  
Intermolecular Hydrogen Bonding ◽  
Heats Of Dilution ◽  
Self Association

The intermolecular hydrogen-bonding self-association of the three cresols in CCl4 solutions at 25 °C has been investigated by calorimetric means. Calorimetrically determined heats of dilution of each of the cresols in anhydrous CCl4 are interpreted in terms of two different models: (i) dimerization and trimerization self-association reactions, and (ii) dimerization followed by stepwise polymerization self-association reactions. Values of K, ΔH0, and ΔS0 for these reactions are calculated using least-squares and other methods. Results show that o-cresol is clearly less associated in anhydrous CCl4 solution at 25 °C than either m- or p-cresol. Values of K2 and K3 (both based on molar concentrations of solutes) and ΔH20and ΔH30 (kcal) for the reactions [Formula: see text] respectively, are o-cresol: 0.7, 1.3,−3.4,−12.5; m-cresol: 0.8, 5.0,−5.0,−13.6; p-cresol: 0.35, 6.5,−5.5,−13.4. Values of K2 and Ks (both based on molar concentrations of solutes) and ΔH20 and ΔHs0 (kcal) for the reactions [Formula: see text] (all n > 2 with same Ks and ΔHS0), respectively, are o-cresol: 0.7, 1.6, −4.2, −4.5; m-cresol: 1.2, 4.0, −5.0, −4.3; p-cresol: 1.0, 7.0, −3.3, −3.5.

(Acetylacetonato-κ2O,O′)[1-(4-bromophenyl-κC2)-3-methylimidazol-2-ylidene-κC2]platinum(II)

2012 ◽  
Vol 68 (8) ◽  
pp. m203-m205 ◽  
Author(s):  
Mario Tenne ◽  
Yvonne Unger ◽  
Thomas Strassner
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Intermolecular Hydrogen Bonding ◽  
Coordination Environment ◽  
Π Interactions ◽  
New Class ◽  
Square Planar ◽  
Parallel Fashion

The title platinum(II) complex, [Pt(C10H8BrN2)(C5H7O2)], has a bidentate cyclometallated phenylimidazolylidene ligand and an acetylacetonate spectator ligand, which form a distorted square-planar coordination environment around the PtIIcentre. In the solid state, the molecules are oriented in a parallel fashion by intermolecular hydrogen bonding and π–π and C—H...π interactions, while close Pt...Pt contacts are not observed. The structure is only the second example for this new class of compounds.

scholarly journals Cover Picture: Halogen and Hydrogen Bonding between (N -Halogeno)-succinimides and Pyridine Derivatives in Solution, the Solid State and In Silico (Chem. Eur. J. 22/2017)

2017 ◽  
Vol 23 (22) ◽  
pp. 5173-5173
Author(s):  
Vladimir Stilinović ◽  
Gordan Horvat ◽  
Tomica Hrenar ◽  
Vinko Nemec ◽  
Dominik Cinčić
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
In Silico ◽  
Pyridine Derivatives
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