TABLE II.

EXAFS structural models for [Cu(aq)]²⁺ in 40% frozen aqueous glass.

	1,3-propanediol		1,5-pentanediol
Scatterer	[CN]a R (Å)b	σ2 × 103c	[CN]a R (Å)b	σ2 × 103c
Oeq	[4] 1.97 ± 0.001	4.31	[4] 1.97 ± 0.001	4.29
Oax1	[1] 2.24 ± 0.002	2.11	[1] 2.22 ± 0.002	2.29
Oax2	[1] 2.37 ± 0.003	2.75	[1] 2.37 ± 0.002	2.74
Ow1	[1] 3.20 ± 0.03	15.10	[1] 3.20 ± 0.02	14.79
Ow2	[1] 3.37 ± 0.02	8.14	[1] 3.37 ± 0.02	10.38
Ow3	[2] 3.81 ± 0.01	8.70	[1] 3.78 ± 0.01	2.94
Ow4	…	…	[1] 3.89 ± 0.01	2.87
Avg. 2nd shell (Å)	3.6 ± 0.3		3.6 ± 0.3
ΔE (eV)	−6.378		−5.654
F-value	0.1567		0.1141

^a[CN] is coordination number.

^bUncertainties in Cu–O are the average statistical e.s.d.’s calculated by the fit. Systematic error is of order ±0.01 Å.

^cMean square displacement (Ų).