New complexes of platinum(0) with cyclopropenes
MahonAbstract
New cyclopropene complexes of platinum have been synthesised with a
variety of bulky substituents on all positions of the cyclopropene ring.
Two of these novel complexes,
[Pt(3,3-Ph
3
C
3
H
2
)(PPh
3
)
2
] and
[Pt(1,2-Ph
2
C
3
H
2
)(PPh
3
)
2
], have been structurally characterised by X-ray analysis. Both
contain a cyclopropene ring which has remained intact upon complexation.
The bond lengths within the complexes are remarkably independent of the
substituents. The structural characteristics and the
31
P NMR
spectra of these complexes are discussed in detail.
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