TY  - JOUR
A1  - El Essawi, Mervat
A1  - Gosmann, H.
A1  - Fenske, Dieter
A1  - Schmock, Fritjof
A1  - Dehnicke, Kurt
T1  - Synthesen und Kristallstrukturen von [PPh3Me]NO2 und [PPh3 Me]HCO2H2O
T1  - Syntheses and crystal structures of [PPh3Me]NO2 and [PPh3Me]HCO2H2O
T2  - Zeitschrift für Naturforschung, B
N2  - Triphenylmethylphosphonium nitrite and formate have been prepared by the reaction of [PPh3Me]I with silver nitrite, and lead formate, respectively, in aqueous solutions. [PPh3Me]NO2 (1) forms pale yellow crystals, and [PPh3Me]HCO2·H2O (2) forms white crystals. Both compounds are soluble in water, ethanol, and dichloromethane. In moist air 2 is hydrated to yield [PPh3Me]HCO2·2H2O (3). The compounds were characterized by their IR spectra, 1 and 2 also by X-ray crystal structure determinations.
[PPh3Me]NO2 (1): space group P21/n, Z = 4, 2088 independent observed reflexions, R = 0.062. Lattice dimensions (20 °C): a = 914.7(3), b = 1887.5(9), c = 1080.0(4) pm, β = 110.29(3)°. The compound consists of PPh3Me+ ions and NO2- anions with bond lengths of 114.2(6) pm and a bond angle of 124.1(7)°.
[PPh3Me]HCO2·H2O (2): space group P21/n, Z = 4, 2973 independent observed reflexions, R = 0.069. Lattice dimensions (-20 °C): a = 931(2), b = 1558(3), c = 1281(2) pm, β = 105.9(1)°. The compound consists of PPh3Me+ ions and formate anions which form centrosymmetric dimeric units [HCO2·H2O]22- through hydrogen bridges of the water molecules. Bond lengths CO 122.4(4) and 120.9(4) pm. bond angle OCO 129.9(4)°.
KW  - Triphenylmethylphosphonium Nitrite and Formate
KW  - Synthesis
KW  - Crystal Structure
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/76954
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-769547
SN  - 1865-7117
SN  - 0932-0776
VL  - 43.1988
IS  - 10
SP  - 1279
EP  - 1284
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -