Nucleophilic and electrophilic promotion
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David R. Bessire; Robert A. Holwerda
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Article
📅
1999
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John Wiley and Sons
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English
⚖ 134 KB
👁 2 views
Base hydrolysis reactions of [Cr(tmpa)(NCSe)] 2 O 2ϩ , [Cr(tmpa)(N 3 )] 2 O 2ϩ , and follow the pseudo-first-4ϩ 2ϩ [Cr (tmpa) (ϪO)(ϪPhPO )] [ Cr (tmpa) (ϪO)(ϪCO )] 2 2 4 2 2 3 order relationship (excess OH Ϫ ): For the com- obsd o b p p 3 plex, Ϫ2 Ϫ1 k (60ЊC) ϭ (1.50 Ϯ 0.03) ϫ 10 s ; ⌬H ‡ ϭ 61 Ϯ