In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 43, No. 2 ( 1988-2-1), p. 138-148
Abstract:
[Ph 3 PN(H)Ph][AuI 2 ] (2) is formed by the reaction of AuI with N-Phenyl-iminotriphenylphosphorane, Ph 3 PNPh in a toluene suspension. 2,3-Bis(triphenylphosphinimino)maleic acid-N-methylimide (3) has been prepared by the Staudinger reaction of 2,3-bis(azido)maleic acid-N-methylimide with PPh 3 in THF solution in the form of red crystals. Crystal structure determinations of three iminophosphoranes were carried out by X-ray methods. Ph 3 PNPh (1): space group P2 1 /c, Z = 4, 2176 independent observed reflexions, R = 0.057. Lattice dimensions (-30 °C): a = 1126.4, b = 1148.6, c = 1476.0 pm; β = 97.21°. The compound forms monomeric molecules with P=N = 160.2 pm and an PNC angle of 130.4°. [Ph 3 PN(H)Ph][AuI 2 ] (2): space group P1̄, Z = 2, 1780 independent observed reflexions, R = 0.057. Lattice dimensions (18 °C); a = 824.9, b = 1022, c = 1476.2 pm; α = 89.23°, β = 87.41°, γ = 85.65°. The compound consists of ions [Ph 3 PN(H)Ph] ⊕ with P=N = 162.4 pm and PNC = 129.3°, and anions [AuI 2 ] ⊖ with Au-I = 261.9 and 259.3 pm, IAuI = 176.8°. (Ph 3 P) 2 N 2 C 4 O 2 (NMe) (3): space group P1̄, Z = 2, 4972 independent observed reflexions, R = 0.050. Lattice dimensions (-90 °C): a = 904.7, b = 993.8, c = 2017.4 pm; α = 101.55°, β = 96.39°, γ = 105.81°. The compound forms monomeric molecules with syn-conformation of the two NPPh 3 groups. Bond lengths: P=N = 157.1; 155.3 pm, bond angles: PNC = 133°; 136°
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1988-0202
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1988
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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