Thermochemistry of Thiolato Derivatives of Manganese Carbonyl - the Strength of Manganese-Sulfur Bonds

Connor, Joseph A. and Gobel, Andreas (1995) Thermochemistry of Thiolato Derivatives of Manganese Carbonyl - the Strength of Manganese-Sulfur Bonds. Polyhedron, 14 (20-21). pp. 3107-3110. ISSN 0277-5387. (The full text of this publication is not available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/0277-5387(95)00085-7

Abstract

Calorimetric measurements of the thermal decomposition of [Mn-2(CO)(8)(SR)(2)] (R = CH3, C2H5) have been made in the temperature range T = 450-550 K. Analyses of the decomposition reactions indicate that the products include the sulphide, R(2)S, and manganese(II) sulphide. Using drop microcalorimetric methods, values were determined for the standard molar enthalpies of formation at 298 K of the crystalline compounds: Delta(f)H(m)(o)([Mn-2(CO)(8) (SCH3)(2)],Cr) -(1521 +/- 30) kJ mol(-1), Delta(f)H(m)(o)([Mn-2 (CO)(8)(SC3H5)(2)],cr) = -(1555+/-30) kJ mol(-1). These are combined with molar enthalpies of sublimation and other standard enthalpy contributions to provide an estimate of the Mn-S bond enthalpy contribution D(Mn-SR)= (162+/-5) kJ mol(-1). A group disruption model is also considered.

Item Type: Article
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: P. Ogbuji
Date Deposited: 05 Jun 2009 17:17
Last Modified: 14 May 2014 15:43
Resource URI: http://kar.kent.ac.uk/id/eprint/19768 (The current URI for this page, for reference purposes)
  • Depositors only (login required):