PRESSURE-DEPENDENT ISOTOPE EFFECT IN THE REACTION OF SILYLENE (SIH2, (1)A(1)) WITH ACETYLENE AND [H-2(2)]ACETYLENE

被引：21

作者：

BECERRA, R

FREY, HM

MASON, BP

WALSH, R

机构：

[1] UNIV READING,DEPT CHEM,POB 224,READING RG6 2AD,BERKS,ENGLAND

[2] CSIC,INST QUIM FIS ROCASOLANO,E-28006 MADRID,SPAIN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS | 1993年 / 13期

关键词：

D O I：

10.1039/c39930001050

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Direct, time resolved measurements of absolute rate constants for reaction of SiH2(1A1) with C2H2 and C2D2 have revealed a pressure (and temperature) dependent isotope effect characteristic of an association process yielding an intermediate (silirene) which undergoes, amongst other reactions, a degenerate isotopic scrambling process.

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页码：1050 / 1052

页数：3

相关论文

共 11 条

[1] SIMILARITIES AND DIFFERENCES IN THE ADDITION-REACTIONS OF SILYLENE (SIH2, (1)A(1)) AND METHYLENE (CH2, (1)A(1)) TO C2H4 [J].

ALRUBAIEY, N ;

FREY, HM ;

MASON, BP ;

MCMAHON, C ;

WALSH, R .

CHEMICAL PHYSICS LETTERS, 1993, 204 (3-4) :301-305

[2]

ALRUBAIEY N, UNPUB

[3] TEMPERATURE-DEPENDENCE OF THE REACTION OF SIH2 WITH D2 [J].

BAGGOTT, JE ;

FREY, HM ;

KING, KD ;

LIGHTFOOT, PD ;

WALSH, R ;

WATTS, IM .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (14) :4025-4027

[4] ABSOLUTE RATE CONSTANTS FOR THE GAS-PHASE REACTIONS OF SILYLENE WITH SILANE, DISILANE AND THE METHYLSILANES [J].

BAGGOTT, JE ;

FREY, HM ;

LIGHTFOOT, PD ;

WALSH, R ;

WATTS, IM .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (01) :27-33

[5]

BECERRA R, IN PRESS INT J CHEM

[6] THEORETICAL-STUDIES OF 3-MEMBERED RING COMPOUNDS Y2H4X (Y=C, SI, X = CH2, NH, O, SIH2, PH, S) [J].

BOATZ, JA ;

GORDON, MS .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (08) :3025-3029

[7] THEORETICAL-STUDIES OF THE METALLACYCLOPROPENES C-[MX2C2H2] (M = C, SI, GE, SN - X = H, F) [J].

BOATZ, JA ;

GORDON, MS ;

SITA, LR .

JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (14) :5488-5493

[8] ABSOLUTE RATE CONSTANTS FOR SILYLENE REACTIONS WITH HYDROCARBONS AT 298-K [J].

CHU, JO ;

BEACH, DB ;

JASINSKI, JM .

JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (20) :5340-5343

[9] MECHANISM AND KINETICS OF THE SILANE DECOMPOSITION IN THE PRESENCE OF ACETYLENE AND IN THE PRESENCE OF OLEFINS [J].

ERWIN, JW ;

RING, MA ;

ONEAL, HE .

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 1985, 17 (10) :1067-1083

[10] RING STRAIN IN CYCLOPROPANE, CYCLOPROPENE, SILACYCLOPROPANE, AND SILACYCLOPROPENE [J].

GORDON, MS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (25) :7419-7422