1995
DOI: 10.1002/jlac.199519950108
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Substituenteneffekte auf die CC‐Bindungsstärke, 16. Thermische Stabilität und Bildungsenthalpie von β‐Dicarbonylverbindungen. — Stabilisierung von α,α′‐Diketoalkyl‐Radikalen

Abstract: The geminal interactions of the two carbonyl groups in seven AH* of thermal CC bond cleavage of eight model compounds P-diketones of the type 8-9 and 11-13 were estimated from of the type 9-13 by their comparison with AH* of comparatheir enthalpies of formation, which were deduced from their ble hydrocarbons of similar strain. For non-cyclic a,a'-diacylheats of combustion and enthalpies of vaporization. The radi-alkyl radicals and six-membered cyclic ones RSE = 54.8 t cal stabilisation enthalpies RSE of the a&… Show more

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Cited by 16 publications
(5 citation statements)
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“…retention times measured on a non-polar capillary column [1,2]. We have contributed to this series of required thermophysical data in the past by determining vapour pressures and enthalpies of vaporization investigations on branched esters [3,4], amines [5], nitro-compounds [6], nitriles [7,8], alcohols - [9][10][11], aldehydes [12], ketones [13], imines [14], fluoroalkanes [15], carboxylic acids [16], and alkyl ethers, acetals, ketals, orthoesters [17][18][19]. This paper extends our previous [2][3][4] studies on the esters with the systematic study of aliphatic acetates C 8 -C 16 .…”
Section: Introductionmentioning
confidence: 99%
“…retention times measured on a non-polar capillary column [1,2]. We have contributed to this series of required thermophysical data in the past by determining vapour pressures and enthalpies of vaporization investigations on branched esters [3,4], amines [5], nitro-compounds [6], nitriles [7,8], alcohols - [9][10][11], aldehydes [12], ketones [13], imines [14], fluoroalkanes [15], carboxylic acids [16], and alkyl ethers, acetals, ketals, orthoesters [17][18][19]. This paper extends our previous [2][3][4] studies on the esters with the systematic study of aliphatic acetates C 8 -C 16 .…”
Section: Introductionmentioning
confidence: 99%
“…We have contributed to this series in the past by determining vapour pressures and enthalpies of vaporization investigations on branched esters [1,2], amines [3], nitro-compounds [4], nitriles [5,6], alcohols [7,8], aldehydes [9], ketones [10], imines [11], fluoroalkanes [12], carboxylic acids [13], and alkyl ethers, acetals, ketals, orthoesters [14][15][16][17]. This work was initiated to investigate the relationship between vaporization enthalpy and Kovat's indices and it extends our previous [18,19] studies on the alkyl-benzenes with the systematic study of the linear alkyl-benzenes with the alkyl chain length of C 5 , C 7 , C 10 , and C 11 . The enthalpies of vaporization, D g l H m ð298:15 KÞ, have been obtained from the temperature dependence of the vapour pressures measured by the transpiration method.…”
Section: Introductionmentioning
confidence: 99%
“…class of organic compound. Systematic investigations have been carried out in the Thermochemical Laboratory of the University of Freiburg with measurements on branched ethers, (1,2) esters, (3,4) nitriles, (5) and ketones. (6) This paper follows this course and is concerned with the investigation of branched aliphatic amines and some aromatic amines.…”
Section: Introductionmentioning
confidence: 99%