THE HEAT OF FORMATION OF (CH3O)2B+

被引：11

作者：

RANATUNGA, TD ^{[1
]}

POUTSMA, JC ^{[1
]}

SQUIRES, RR ^{[1
]}

KENTTAMAA, HI ^{[1
]}

机构：

[1] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 128卷 / 03期

关键词：

BORON; THERMOCHEMISTRY; BORINIUM ION; TRIMETHYL BORATE; PROTON AFFINITY;

D O I：

10.1016/0168-1176(93)87072-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The proton affinity of trimethyl borate was determined to be 197 +/- 3 kcal mol-1 by bracketing in both directions in a Fourier-transform ion cyclotron resonance mass spectrometer. This value was used to calculate a heat of formation of -46.3 +/- 3.0 kcal mol-1 for CH3O(H)B(OCH3)2+. Collision-induced dissociation threshold energy measurements carried out in a flowing afterglow-triple quadrupole instrument yield an activation energy of 39.5 +/- 3.5 kcal mol-1 for the dissociation of CH3O(H)B(OCH3)2+ to CH3OH and (CH3O)2B+. This bond dissociation energy, together with the heat of formation of CH3O(H)B(OCH3)2+, was used to calculate a heat of formation of 41.4 +/- 4.6 kcal mol-1 for (CH3O)2B+.

引用

页码：L1 / L4

页数：4

共 50 条

[1] Theoretical study of the reaction mechanism and kinetics of the OH plus trimethyl orthoformate ((CH3O)3CH) + O2 reaction
Du, Benni
Zhang, Weichao
COMPUTATIONAL AND THEORETICAL CHEMISTRY, 2019, 1159 : 38 - 45
[2] The molecular structure, spin-vibronic energy levels, and thermochemistry of CH3O
Marenich, Aleksandr V.
Boggs, James E.
JOURNAL OF MOLECULAR STRUCTURE, 2006, 780-81 : 163 - 170
[3] Energetics of substituent effects on the benzene ring: CH3O with F, Cl, Br, and I
Nagrimanov, Ruslan N.
Ibragimova, Aliya R.
Italmasov, Almaz R.
Kornilov, Dmitry A.
Ziganshin, Marat A.
Solomonov, Boris N.
Verevkin, Sergey P.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2023, 148 (03) : 1087 - 1108
[4] The role of the carbon diffusion zone presence for the fracture toughness and wear resistance of a single-phase Fe2B layer produced on pure iron by gas boriding in N2-H2-B(CH3O)3 atmosphere
Makuch, Natalia
SURFACE & COATINGS TECHNOLOGY, 2021, 427
[5] Thermochemistry and Kinetics for 2-Butanone-3yl Radical (CH3C(=O)CH•CH3) Reactions with O2
Sebbar, Nadia
Bozzelli, Joseph William
Bockhorn, Henning
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 2011, 225 (9-10): : 993 - 1018
[6] Synthesis, crystal structure, and spectroscopic characterization of the borazine derivatives [B{CH2(SiCl3)}NH]3 and [B{CH2(SiCl2CH3)}NH]3
Jäschke, T
Jansen, M
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2004, 630 (02): : 239 - 243
[7] Ketene Formation Through Interaction Reactions During P2O3/P2O5/CH3C(=O)OH Pyrolysis
Sebbar, Nadia
Appel, Joerg
Bockhorn, Henning
COMBUSTION SCIENCE AND TECHNOLOGY, 2016, 188 (4-5) : 745 - 758
[8] Thermochemistry and kinetics of the 2-butanone-4-yl CH3C(=O)CH2CH2• + O2 reaction system
Sebbar, N.
Bozzelli, J. W.
Trimis, D.
Bockhorn, H.
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 2019, 51 (08) : 541 - 562
[9] MECHANISM AND KINETICS OF THE CH3CH2C(O)OCH2CH3+OH REACTION: A THEORETICAL STUDY
Hou, Cong
Ci, Cheng-Gang
Jin, Tong-Yin
Wang, Yong-Xia
Liu, Jing-Yao
JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY, 2011, 10 (05) : 691 - 709
[10] 209Bi NQR in Mixed Oxides 2Bi2O3· B2O3, 3Bi2O3· 5B2O3, and Bi2O3· 3B2O3
E. A. Kravchenko
Yu. F. Kargin
A. V. Egorysheva
Yu. A. Buslaev
Russian Journal of Coordination Chemistry, 2001, 27 : 542 - 547

← 1 2 3 4 5 →