Lewis base adducts of Group 11 metal compounds. Part 24. Co-ordination of triphenylphosphine with silver nitrate. A solid-state cross-polarization magic angle spinning 31P nuclear magnetic resonance, crystal structure, and infrared spectroscopic study of Ag(PPh3)nNO3(n= 1–4)
Lewis base adducts of Group 11 metal compounds. Part 24. Co-ordination of triphenylphosphine with silver nitrate. A solid-state cross-polarization magic angle spinning 31P nuclear magnetic resonance, crystal structure, and infrared spectroscopic study of Ag(PPh3)nNO3(n= 1–4)
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第 11 族金属化合物的路易斯碱加合物。第 24 部分。三苯基膦与硝酸银的配位。Ag(PPh3)nNO3( 的固态交叉偏振魔角旋转 31P 核磁共振、晶体结构和红外光谱研究。 n= 1–4)
DOI:
10.1039/dt9860001965
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发表时间:
1986
期刊:
影响因子:
--
通讯作者:
Allan H. White
中科院分区:
文献类型:
--
作者:
P. F. Barron;J. C. Dyason;P. Healy;L. M. Engelhardt;B. Skelton;Allan H. White
Solid-state cross-polarization magic angle spinning 31P n.m.r. spectroscopy, single-crystal X-ray structure determination, and i.r. spectroscopy have been used to investigate the properties of the adducts of triphenylphosphine with silver(I) nitrate: Ag(PPh3)NO3, (1); Ag(PPh3)2NO3, (2); Ag(PPh3)3NO3, (3); and Ag(PPh3)4NO3, (4). The value of 1J(Ag–P) decreases with increasing co-ordination number: (1), 780; (2), 470; (3), 310; and (4),190 Hz, paralleling solution results. Single-crystal X-ray structure determinations of compounds (2)–(4) have been performed: (2), triclinic, space group P, a= 11.821(3), b= 11.990(3), c= 13.660(3)A, α= 102.05(2), β= 112.80(2), and γ= 105.30(2)°, yielding R= 0.036 for 4 090 ‘observed’ reflections; Ag–P 2.443(1) and 2.440(1)A, P–Ag–P 138.21(5)°(3), monoclinic, space group P21/n, a= 18.984(5), b= 13.710(3), c= 17.900(4)A, and β= 94.94(2)°, yielding R= 0.053 for 5126 reflections; Ag–P 2.630(2), 2.525(1), and 2.545(2)A, P–Ag–P 118.37(5),112.07(4), and 116.44(5)°; (4), trigonal, space group R, a= 19.07(2), and α= 43.77(5)°, yielding R= 0.060 for 1 903 observed reflections; Ag–P 2.643(3) and 2.671(4)A, P–Ag–P 109.49(12) and 109.45(10)°. Structures (2) and (3)[and (1)] are isomorphous with the analogous triphenylarsine compounds. In all cases the nitrate group is only weakly co-ordinated [and is ionic in (4)]: Ag–O 2.464(4) and 2.649(4) in (2), 2.684(6) and 2.775(6)A in (3). These weak interactions are reflected in the small splitting observed for the asymmetric N–O stretching vibrational mode compared to the analogous copper(I) compounds.