Abstract
The reactions of CF 3B(NMe 2) 2 (I) and (CF 3) 2BNMe 2 (II) with HX (X F, Cl and Br) have been investigated. Additions with preservation of the BC bonds to yield species with tetracoordinate boron, along with some BN cleavage, were observed. While I formed boronium salts CF 3B(X)(NHMe 2) 2 +X − with X Cl and Br, CF 3BF 2 · NHMe 2 (V) was obtained with HF. On the other hand, reactions of II with HX yielded the 1 : 1 adducts (CF 3) 2B(X) · HNMe 2 in each case. Of these, the species with X F (VI) and X OH (IX) (obtained by hydrolysis) were examined by single crystal X-ray diffraction. Surprisingly, no difference was found between the average BC bond lengths of these borates (VI 1.612(8), IX 1.624(4) Å) and that of II. The implications of this observation for BCF 3 bonding are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.