作者:Nicola J. Farrer、Robert McDonald、J. Scott McIndoe
DOI:10.1039/b609561e
日期:——
Attachment of a proton sponge to a phosphine ligand renders neutral complexes of the ligand highly amenable to analysis by electrospray ionisation mass spectrometry (ESI-MS). The ligand 1,8-bis(dimethylamino)naphthyldiphenylphosphine (3) is extremely efficient and highly selective in forming exclusively [M + H]+ ions, which may be detected at very low concentration. Ionisation efficiency of 3 in the presence of H+ approached 100%. The bis-substituted ligand bis1,8-bis(dimethylamino)naphthyl}phenylphosphine (4) was also prepared and characterised, as were Fe(CO)4- (5c), Mn(η5-C5H4Me)(CO)2- (6) and W(CO)5- (7) complexes of 3. Compounds 3, 3·HBr·EtOH, 4 and 5c were all structurally characterised.
质子海绵与膦配体的连接使得配体的中性络合物非常适合通过电喷雾电离质谱(ESI-MS)进行分析。配体 1,8-双(二甲氨基)萘基二苯基膦 (3) 在专门形成 [M + H]+ 离子方面非常有效且具有高度选择性,可以在非常低的浓度下检测到。在 H+ 存在下 3 的电离效率接近 100%。还制备并表征了双取代配体双1,8-双(二甲基氨基)萘基}苯基膦(4),以及Fe(CO)4-(5c)、Mn(η5-C5H4Me)(CO)2- (6) 和W(CO)5-(7) 3 的配合物。化合物3、3·HBr·EtOH、4 和5c 均进行了结构表征。