X-Ray Crystallographic Analysis, EPR Studies, and Computational Calculations of a Cu(II) Tetramic Acid Complex

Table 4

Bond and copper valence data for Cu-complex.

	(calc) [Å]	(calc)	(exp) [Å]	(exp)
Cu1–O13	1.9791	0.435	1.930	0.498
Cu1–O54	1.9791	0.435	1.930	0.498
Cu1–O8	1.9938	0.417	1.936	0.490
Cu1–O49	1.9938	0.417	1.936	0.490
Cu1–O34	2.4688	0.112	2.522	0.0962
Cu1–O75	2.4688	0.112	2.522	0.0962
		(calc) = 1.9		(exp) = 2.2

From these calculations a satisfactory agreement between (calc) and (exp) is stated.