Synthesis, Spectroscopic Characterization and Biological Activities of Transition Metal Complexes Derived from a Tridentate Schiff Base

Table 3

Inter-molecular hydrogen bonds present in DNA-CoL₂.

Type	Donor	Donor atom	Acceptor	Acceptor atom	d (H⋯A) (Å)	D (X⋯A) (Å)	q (X−H⋯A) (^°)
C–H⋯N	CoL2	C	Adenine	N6	2.068	3.054	148.8
C–H⋯N	CoL2	C	Adenine	N6	2.251	3.160	139.1
C–H⋯N	CoL2	C	Adenine	N7	1.307	1.749	93.07
C–H⋯N	CoL2	C	Adenine	N6	2.473	3.121	118.6
C–H⋯N	CoL2	C	Adenine	N7	2.273	3.103	133.8
C–H⋯O	CoL2	C	Adenine	O2P	2.640	3.656	154.6
C–H⋯O	CoL2	O	Adenine	O2P	2.943	3.191	96.02
C–H⋯O	CoL2	C	Adenine	O1P	1.253	1.934	113.2
C–H⋯O	CoL2	C	Guanine	O2P	1.390	2.013	109.7
C–H⋯O	CoL2	C	Thymine	O4	1.187	2.122	141.6