Table 3.

Selected hydrogen bond distances/Å and angles/° for 6

D	H	A	d(D-H)/Å	d(H-A)/Å	d(D-A)/Å	D-H-A/°
N(1)	H(1A)	O(3)	0.88	1.93	2.584(4)	130.4
N(1)	H(1B)	O(3)a	0.88	2.03	2.890(4)	166.8

^a+X,1-Y,-1/2+Z