Table 4.

Selected hydrogen bonding parameters (A,°) for the halide complexes in their optimized strictures.

	[L(F)]−		L(Cl)]−		L(Br)]−
D–H⋯A	D⋯A	∠D–H⋯A	D⋯A	∠D–H⋯A	D⋯A	∠D–H⋯A
N(54)–H⋯X	2.691	152.98	3.212	160.87	3.318	161.26
N(50)–H⋯X	2.802	148.94	3.465	150.48	3.613	151.15
N(68)–H⋯X	2.817	151.74	3.553	148.70	3.589	151.53
N(9)–H⋯X	2.764	151.80	3.220	160.80	3.334	164.96
N((27)–H⋯X	2.907	146.36	3.486	149.90	3.525	154.05
N(31)–H⋯X	2.689	160.78	3.228	162.76	3.329	158.47