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Insights into Frustrated and Regular peri ‐Substituted (Ace‐)Naphthylaminoboranes and (Ace‐)Naphthylphosphinoboranes
Author(s) -
Furan Sinas,
Hupf Emanuel,
Lork Enno,
Mebs Stefan,
Beckmann Jens
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201700267
Subject(s) - chemistry , frustrated lewis pair , peri , lewis acids and bases , quantum chemical , stereochemistry , crystallography , molecule , organic chemistry , catalysis , philosophy , theology
Four peri ‐substituted acenaphthylphosphinoboranes 5‐Ph 2 P‐Ace‐6‐BRR′ (R = R′ = H; R = H, R′ = C 6 F 5 ; R = Cl, R′ = C 6 F 5 ; R = R′ = C 6 F 5 ), possessing functionality at the B atoms, were prepared and fully characterized. A quantum‐chemical analysis of these and previously known (ace‐)naphthylaminoboranes and (ace‐)naphthylphosphinoboranes revealed that these compound classes can be divided into three subclasses, namely: regular Lewis pairs (LPs) with predominately attractive peri interactions; frustrated Lewis pairs (FLPs) with predominately repulsive peri interactions; and regular Lewis pairs with predominately repulsive peri interactions. The latter subclass is a straightforward example of the enforced proximity donor concept. A detailed bond analysis showed no principal difference between attractive and enforced B–P bonds in (ace‐)naphthylphosphinoboranes.