μ-Bis(diphenylphosphino)methane-P:P′-octacarbonyldimanganese(Mn-Mn) and its toluene hemisolvate

• Published in: Acta crystallographica. Section C, Crystal structure communications Crystal structure communications, 2001-11, Vol.57 (11), p.1292-1294
• Main Authors: Baxley, Gregory T., Stiegman, Albert E., Nieckarz, Gregory F., Weakley, Timothy J. R., Tyler, David R., Gilbertson, John
• Format: Article
• Language: English
• Subjects: Carbonyl and nitrosyl compounds, and their complexes; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Inorganic compounds; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270101013130

The Mn—Mn bonds in the two independent mol­ecules of the unsolvated title compound, [Mn2(C25H22P2)(CO)8], (I), are 2.9714 (7) and 2.9746 (7) Å. This bond is distinctly shortened in the toluene hemisolvate, [Mn2­(C25­H22P2)(CO)8]·­0.5C7H8, (II), to 2.9338 (14) Å and this shortening is accompanied by an increase in magnitude of the P—Mn—Mn—P torsion angle [26.93 (3) and 28.44 (3)° in (I), and 33.25 (7)° in (II)], while the P⋯P `bite' is much less affected [3.092 (2) and 3.099 (2) Å in (I), and 3.091 (3) Å in (II)]. The toluene solvate mol­ecule in (II) lies on a twofold axis.