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Karplus-type dihedral angle dependence for the coupling constants 3J(119SnCC119Sn) and 3J(119SnCC29Si)

✍ Scribed by Terence N. Mitchell; Bernd Kowall

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
286 KB
Volume
33
Category
Article
ISSN
0749-1581

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✦ Synopsis

In compounds of the type Me,SnCH,CHRSnMe, and Me,SiCH,CHRSnMe, , there is a linear relationship between ,J(H,H) and 3J(119Sn,1'9Sn) or 3J(119Sn,29Si), respectively, thus providing unequivocal evidence for a Karplus-type behaviour for the coupling constants 'J(' 19Sn,119Sn) and 3J("9Sn,29Si). Preliminary Karplus equations are presented on the basis of the available data.

📜 SIMILAR VOLUMES

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A Karplus-type relationship for the vicinal coupling 3J(CCCP) in phosphonates
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The complete assignment of the I3C N M R spectrum of a conformationally rigid camphane phosphonate derivative leads to a Karplus-type function for the vicinal 'J(CCCP) coupling constants in phosphonates. The general applicability of this relationship is demonstrated.

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## Abstract The first successful observation of the vicinal ^15^N,^13^C spin‐coupling constants in a series of amino acids, comprising Val, Ile, Leu and Thr, in which the α‐nitrogens are fully replaced with ^15^N, is described. A Karplus‐type dihedral‐angle dependence was noted for the coupling con