Eichhorn C, Scherer OJ, Sögding T, Wolmershäuser G. Synthesis, Structure, and Reactivity of a Diphosphadiferratetrahedrane with a Fe-Fe Double Bond.
Angew Chem Int Ed Engl 2001;
40:2859-2861. [PMID:
29712006 DOI:
10.1002/1521-3773(20010803)40:15<2859::aid-anie2859>3.0.co;2-k]
[Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2001] [Indexed: 11/08/2022]
Abstract
The short thermolysis of the butterfly molecule [{Cp'''(OC)2 Fe}2 P4 ] affords, besides [Cp'''FeP5 ] and [{Cp'''Fe}2 P4 ], the diphosphadiferratetrahedrane [{Cp'''Fe}2 (μ-CO)(μ-η2 :η2 -P2 )] with a Fe-Fe double bond in 18 % yield. The P2 building block was split photochemically into two μ-P ligands with elimination of CO. In the resulting dinuclear complex 1, the 31 P NMR signal is shifted to extremely low field (δ=1406.9), and the rhombic Fe2 P2 four-membered ring is almost orthogonal to the eclipsed Cp''' five-membered rings; Cp'''=tBu3 C5 H2 .
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