THE ENTHALPIES OF FORMATION OF (DIMETHYLAMINO)DICHLOROPHOSPHINE, BIS(DIMETHYLAMINO)CHLOROPHOSPHINE, AND TRIS(DIMETHYLAMINO)PHOSPHINE

被引：4

作者：

ALMAYDAMA, HMA ^{[1
]}

FINCH, A ^{[1
]}

GARDNER, PJ ^{[1
]}

HEAD, AJ ^{[1
]}

机构：

[1] UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL,DEPT CHEM,EGHAM TW20 0EX,SURREY,ENGLAND

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1995年 / 27卷 / 03期

关键词：

D O I：

10.1006/jcht.1995.0026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The standard molar enthalpies of formation at the temperature 298.15 K of (CH3)(2)NPCl2(1), {(CH3)(2)N}2PCl(1), and {(CH3)(2)N}P-3(1) have been determined by reaction calorimetry as -(286.3+/-2.4) kJ.mol(-1), -(220.1+/-2.3) kJ.mol(-1), and -(112.8+/-2.3) kJ.mol(-1), respectively. Enthalpies of vaporization have been obtained from vapour-pressure measurements and the corresponding values of Delta(f)N(m)(degrees)(g) derived as -(245.5+/-2.5)kJ.mol(-1), -(174.2+/-2.6) kJ.mol(-1), and -(71.3+/-2.4) kJ.mol(-1), respectively. The values of the bond enthalpies D(P-Cl) and D(P-N) in substituted phosphines are discussed.

引用

页码：273 / 279

页数：7