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. Author manuscript; available in PMC: 2013 Mar 11.
Published in final edited form as: J Catal. 2011 Nov 14;284(2):157–164. doi: 10.1016/j.jcat.2011.10.009

Table 2.

Spectroscopically characterized mononuclear and binuclear Cu/O2 complexes

Cu/O2 species λmax[cm−1]
(ε[M−1 cm−1])		 Cu…..Cu
distance[Å]		 rR vibrations
(Δ18O2) [cm−1]		 reference
O2 activated
Cu-ZSM-5		 22700
30000		 2.87 456 (8)
870 (40)
bis(μ-oxo)
dicopper(III)		 graphic file with name nihms-378275-t0013.jpg 22300-25000
(13000-
28000)
30800-32700
(11000-
21000)		 2.74 - 2.91 νCu-O=606 (23) [71-73,
78, 79]
μ-(η2:η2) peroxo
dicopper(II)
(planar)		 graphic file with name nihms-378275-t0014.jpg 17000-19800
(1000)
27300-29600
(20000)		 3.5 - 3.8 νCu-Cu=284 (0)
νO-O=763 (40)		 [73-76,
80]
μ-(η2:η2) peroxo
dicopper(II) (bent)		 graphic file with name nihms-378275-t0015.jpg 18200 (1000)
20400-23800
( 5000)
27800
(20000)		 3.2 - 3.4 [77]
η1-superoxo
copper(II)		 graphic file with name nihms-378275-t0016.jpg 23923(4300)
16260(1100)
13037(840)		 νCu-O=472 (20)
νO-O=1121 (63)		 [81]
η2-superoxo
copper(II)		 graphic file with name nihms-378275-t0017.jpg 10200 (<400)
14300 (<400)
22100 (<400)
26100 (<400)		 νCu-O=554 (20)
νO-O=1043 (59)		 [82]
η1-hydroperoxo
copper(II)		 graphic file with name nihms-378275-t0018.jpg 16730 (1540)
12 000 (300)		 νCu-O=624 (17)
νO-O=843 (44)		 [83]
trans-μ-1,2-peroxo
dicopper(II)		 graphic file with name nihms-378275-t0019.jpg 22989 (1700)
19083 (11300
16260 (5800)		 4.36 νCu-O=561 (26)
νO-O=832 (44)		 [67, 83]
μ-1,1-hydroperoxo
dicopper(II)		 graphic file with name nihms-378275-t0020.jpg 25 200 (6700)
21 000
15 500 (660)		 2.95 - 3.04 νCu-O=322 (10)
νO-O=892 (52)		 [84]