SURPRISING BASICITY OF LOW VALENT TRANSITION-METAL CARBONYL FLUORIDES - CRYSTALLOGRAPHIC CHARACTERIZATION OF AN SP2-CH=F HYDROGEN-BOND

Realization of molecular recognition with transition metal complexes via exploitation of CHFM and/or OHFM hydrogen bonds—this aim is approached by the result that was observed with the WII‐complex 1, which proves to be a surprisingly strong Lewis base that binds 4‐chlorophenol equally as well as pyridine. The solid‐state packing of an analogue of 1 fluorinated in the aryl ring is characterized by hydrogen bonds between imine‐CH and fluoroligands. (Figure Presented.) Copyright © 1990 by VCH Verlagsgesellschaft mbH, Germany