μ-OXO-BIS[TRIS(PYRROLIDINO-N)PHOSPHONIUM] TRIFLUOROMETHANESULFONATE, A SALT WITH A DIPHOSPHONIUM ION WITH A NON-LINEAR P[sbnd]O[sbnd]P SEQUENCE

Authors

Thor Gramstad, University of Bergen
Steinar Husebye, University of Bergen
Sergey Lindeman, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

1996

Publisher

Taylor & Francis

Source Publication

Phosphorus, Sulfur, and Silicon and the Related Elements

Source ISSN

1042-6507

Abstract

The title compound contains the diphosphonium ion, [(C₄H₈N)₃P[sbnd]O[sbnd]P(NC₄H₈)₃]²⁺. The structure of the compound is disordered at room temperature. By slow cooling, it goes through a phase transition near −100°C and as a result becomes ordered. Unlike the similar cations [(Me₂N)₃P[sbnd]O[sbnd]P(NMe₂)₃]²⁺, and [(OC₄H₈N)₃P[sbnd]O[sbnd]P(NC₄H₈O)₃]²⁺, it has a non-linear P[sbnd]O[sbnd]P sequence both in the disordered and ordered phase with P[sbnd]O[sbnd]P angles between 155.5(3) and 159.2(3)°. The X-ray crystallographic study of the title compound, both at 273 and 103 K, shows that the P[sbnd]O and P[sbnd]N bond lengths are very similar to those of the linear cations. The P[sbnd]O and P[sbnd]N bond lengths in the title compound ranges from 1.578(4) to 1.602(4) Å and from 1.585(5) to 1.605(5) Å, respectively.

Comments

Phosphorus, Sulfur, and Silicon and the Related Elements, Vol. 115, No. 1 (1996): 183-199. DOI.

Sergey V. Lindeman was affiliated with A.N. Nesmeyanov Institute of Organoelement Compounds, Moscow, Russia at the time of publication.

Recommended Citation

Gramstad, Thor; Husebye, Steinar; and Lindeman, Sergey, "μ-OXO-BIS[TRIS(PYRROLIDINO-N)PHOSPHONIUM] TRIFLUOROMETHANESULFONATE, A SALT WITH A DIPHOSPHONIUM ION WITH A NON-LINEAR P[sbnd]O[sbnd]P SEQUENCE" (1996). Chemistry Faculty Research and Publications. 635.
https://epublications.marquette.edu/chem_fac/635