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- W1947084865 abstract "Homolytic NBr bond dissociation constitutes the initial step of numerous reactions involving N ‐brominated species. However, little is known about the strength of NBr bonds toward homolytic cleavage. We herein report accurate bond dissociation energies (BDEs) for a set of 18 molecules using the high‐level W2 thermochemical protocol. The BDEs (at 298 K) of the species in this set range from 162.2 kJ mol −1 ( N ‐bromopyrrole) to 260.6 kJ mol −1 ((CHO) 2 NBr). In order to compute BDEs of larger systems, for which W2 theory is not applicable, we have benchmarked a wide range of more economical theoretical procedures. Of these, G3‐B3 offers the best performance (root‐mean‐square deviations = 2.9 kJ mol −1 ), and using this method, we have computed NBr BDEs for four widely used N ‐brominated compounds. These include (BDEs are given in parentheses): N ‐bromosuccinimide (281.6), N ‐bromoglutarimide (263.2), N ‐bromophthalimide (274.7), and 1,3‐dibromo‐5,5‐dimethylhydantoin (218.2 and 264.8 kJ mol −1 ). © 2015 Wiley Periodicals, Inc." @default.
- W1947084865 created "2016-06-24" @default.
- W1947084865 creator A5033929884 @default.
- W1947084865 creator A5062367420 @default.
- W1947084865 date "2015-10-13" @default.
- W1947084865 modified "2023-10-16" @default.
- W1947084865 title "A dataset of highly accurate homolytic NBr bond dissociation energies obtained by Means of W2 theory" @default.
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