Mechanistic Studies on the Oxidation of Ascorbic Acid and

Apr 25, 2011 - Department of Chemistry, Jadavpur University, Kolkata 700 032, India. ‡Center for Superfunctional Materials, Department of Chemistry,...
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SUPPORTING INFORMATION Mechanistic Studies on the Oxidation of Ascorbic Acid and Hydroquinone by a {Mn4O6}4+ Core in Aqueous Media Maharudra Chakraborty,§ N. Jiten Singh, Pulak Chandra Mandal,§ Suranjana Das,§ and Subrata Mukhopadhyay§* §

#

Department of Chemistry, Jadavpur University, Kolkata 700 032, India Center for Superfunctional Materials, Department of Chemistry, Pohang

University of science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea

* Corresponding author: E-mail: [email protected], Fax: (+) 91 33 2414 6623

S1

TABLE S1: Mn–O and Mn–N Covalent Bond Lengths in 14+ No.

Bond

Bond length in Å

1

Mn1— O1

1.753

2

Mn1— O2

1.742

3

Mn1— N1

2.122

4

Mn1— N2

2.035

5

Mn1— N3

2.020

6

Mn1— N4

2.061

7

Mn2— O1

1.911

8

Mn2— O2

1.823

9

Mn2— O3

1.815

10

Mn2— O4

1.852

11

Mn2— N5

2.096

12

Mn2— N6

2.127

13

Mn3— O3

1.879

14

Mn3— O4

1.792

15

Mn3— O5

1.846

16

Mn3— O6

1.914

17

Mn3— N7

2.040

18

Mn3— N8

2.098

19

Mn4— O5

1.767

20

Mn4— O6

1.791

21

Mn4— N9

2.108

22

Mn4— N10

2.026

23

Mn4— N11

2.092

24

Mn4— N12

2.018

S2

Figure S1.

Atom labeled pictorial diagram of 14+. Perchlorate anions and crystal

water are not shown.

S3

Figure S2.

Aromatic CH⋅⋅⋅⋅O interaction responsible for reduction in charge of

the O2 atom in 14+.

S4