Structural classification of metal complexes with three-coordinate centres.

Attempts to describe the geometry about three-coordinate silver(i) complexes have proven difficult because interatomic angles generally vary wildly and there is no adequate or readily available classification system found in the literature. A search of the Cambridge Structural Database shows that complexes formed between any metal centre and three non-metal donors (18 001 examples) usually adopt geometries that are quite different than ideal 'textbook' extremes of either trigonal planar (~4% with α = β = γ = 120 ± 2°), T-shaped (~0.05% with α = 180 ± 2°, β = γ = 90 ± 2°), or trigonal pyramidal (~0.

The therapist experience of being the target of hostile versus suspected-unasserted client anger: factors associated with resolution.

The authors qualitatively studied 13 therapists' recollections of 12 hostile and 13 suspected-unasserted client anger events. The trigger for all anger events was a disliked therapist action or inaction. Therapists had more difficulty with hostile than suspected-unasserted client anger.