Partial table of contents: Introduction, Theory, and Methods. 13C NMR Spectral Characteristics. Aliphatic Compounds. Aromatics. Organic Functional Groups. Ions, Radicals, and Complexes. Polymers. Relaxation Studies. Biomolecules. Special Techniques and Applications. Appendix. Index.

https://science.sciencemag.org/content/sci/180/4082/141.full.pdf

Stable carbonium ions. C. Structure of the norbornyl cation

Carbon-13 nuclear magnetic resonance spectroscopy

Carbon—hydrogen spin—spin coupling constants

Publisher Summary In the early 1950s, the structures of the more common boranes were still a matter of debate. Although the hypothesis appeared to be a losing favor, there remained strong tendencies to anticipate and interpret borane structures as having mildly nonconforming hydrocarbon structures. As a number of boranes were verified as having polyhedral fragment configurations, the structural thread to hydrocarbon chemistry became weakened. Subsequently, many other boranes and carboranes were discovered, and a seemingly endless array of multifarious structural types had to be considered. Several schools of thought then arose. Members of one school treated each structure as a separate case, more or less succumbing to the thesis of an almost infinite variety of structural parameters. A second school took the view that although carborane structures were complex in nature, such structures could eventually be categorized or collated by improved theoretical treatments, which could be expected to become ever more accurate because of constantly improving computer systems.

Stable carbonium ions. C. Structure of the norbornyl cation

Citations

Carbon-13 nuclear magnetic resonance spectroscopy

Carbon—hydrogen spin—spin coupling constants

Coordination Number Pattern Recognition Theory of Carborane Structures

100 years of carbocations and their significance in chemistry.

Evidence for protonated cyclopropane intermediates from studies of stable solutions of carbonium ions

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