NEW PT ... H-N BONDS CHARACTERIZED BY N-15-FILTERED AND 2D NOESY H-1-NMR SPECTROSCOPY

被引:29
|
作者
PREGOSIN, PS [1 ]
RUEGGER, H [1 ]
WOMBACHER, F [1 ]
VANKOTEN, G [1 ]
GROVE, DM [1 ]
WEHMANOOYEVAAR, ICM [1 ]
机构
[1] UNIV UTRECHT,DEBYE RES INST,DEPT MET MEDIATED SYNTH,3584 CH UTRECHT,NETHERLANDS
关键词
NOESY; N-15-FILTERED; PT-AMINE COMPLEXES; CYCLOMETALATION; PT ... H-N INTERACTIONS;
D O I
10.1002/mrc.1260300616
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
New Pt...H-N bonding modes in two cycloplatinated complexes, [Pt(C6H4CH2NMe2-2-C,N) (C6H4CH2NMe2H-2-C,H)Br] (1) and [Pt(1-C10H6NMe2-8-C,N)(1-C10H6NMe2H-8-C,H)Br] (2), were characterized by N-15-filtered and 2D NOESY H-1 measurements. Both 1 and 2 show markedly different interactions of an RNMe2H+ group with a platinum centre; the 1J(N-15,H-1) values of 69 and 59 Hz for 1 and 2, respectively, are considerably less than those of the related free and protonated organic amine systems. The corresponding 1J(Pt-195,H-1) values are 72 and 180 Hz, respectively. An approach both to understanding and recognizing these Pt...H-N interactions is presented.
引用
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页码:548 / 551
页数:4
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