Hydrogen-Bonded Networks Based on Cobalt(II), Nickel(II), and Zinc(II) Complexes of N,N'-Diethylurea

Table 9

Dimensions of the unique hydrogen bonds (distances in Å and angles in °) for complex 4.^†

D^‡–H⋯A^§	D^‡⋯A^§	H⋯A^§	<D^‡HA^§
N(1)–H(1)⋯O(21)a	2.905(2)	1.876(1)	150.35(6)
N(11)–H(11)⋯O(1)	2.904(2)	1.932(1)	152.80(6)
N(21)–H(21)⋯O(11)a	2.921(2)	2.314(2)	162.75(10)
N(2)–H(2)⋯O(33)	3.153(2)	2.392(2)	160.19(8)
N(12)–H(12)⋯O(31)b	3.086(2)	2.234(1)	155.95(7)
N(22)–H(22)⋯O(32)c	3.035(2)	2.365(1)	150.81(8)

^†Symmetry transformation used to generate equivalent atoms: a −𝑥, −𝑦, −𝑧; b 𝑥, 𝑦, 1−𝑧; c 1−𝑥, 1−𝑦, 1−𝑧.
^‡D = donor atom.
^§A = acceptor atom.