Supporting Information Peptide-Intercalated Layered Metal

1

Supporting Information

Peptide-Intercalated Layered Metal Hydroxides:

Effect of Peptide Chain Length and Side Chain Functionality on Structural,

Optical and Magnetic Properties

Satyabrata Si, (1, 2) Andreas Taubert, (3,4) Alexandre Mantion (5),Guillaume Rogez, (1), Pierre Rabu,(1)*

1) IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France

2) Functionalized Materials Group, ICMCB-University Bordeaux1, 87, Av. Dr Albert Schweitzer, 33608 PESSAC

cedex, France

3) University of Potsdam, Institute of Chemistry, Karl-Liebknecht-Straße 24-25, 14476 Golm, Germany

4) MPI of Colloids and Interfaces, Am Mühlenberg 1, 14476 Golm, Germany

5) BAM, Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 1, 12489 Berlin, Germany

Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012

2

5 10 15 20 25 30 35 40 45 50 55 60 65 70

2θ (degree)

Inte

nsit

y

Cu-YVL

Cu-YVLV

Cu-FVL

d = 19.2

d = 21.9

d = 20.5

d = 27.0

d = 28.15

d = 26.38

Cu-VVD

Cu-VVE

Cu2(OH)3(C12H25SO4)

A 5 10 15 20 25 30 35 40 45 50 55 60 65 70

2θ (degree)

Inte

nsi

ty

Co2(OH)3(OAc)H2O

Co-YVL

Co-FVL

Co-YVLV

d = 12.8

d = 20.4

d = 22.4

d = 20.2

d = 24.13

d = 24.29

Co-VVD

Co-VVE

B

10 20 30 40 50 60 70

0

Cu-FVL

Inte

nsi

ty

2θ (degree) C

Figure S0: XRD patterns of the peptide grafted layered Cu(II) (A) and Co(II) hydroxides (B) showing

the absence of significant diffraction lines above 30°. Sometimes, like in Cu-FVL (C) weak and broad

lines are observed in the range 32-38 ° which can be assigned to hk0 planes. The numbers indicate the

interlayer d spacing values in Å (001).


3

1800 1700 1600 1500 1400 1300

Wavenumber (cm-1)

Tra

nsm

itta

nce

a

b

c

d

e

f

g

h

i

j

3500 3000 2500 2000 1500 1000 500

Wavenumber (cm-1)

Tra

nsm

itta

nce

a

b

c

d

e

f

g

h

i

j

Figure S1: FTIR spectra of various peptides and their Cu-based hybrid; the enlarged view for the

range 1800-1300 cm-1 is shown in the right side: (a) YVL, (b) Cu-YVL, (c) FVL, (d) Cu-FVL, (e)

YVLV, (f) Cu-YVLV, (g) VVD, (h) Cu-VVD, (i) VVE, and (j) Cu-VVE.


4

1800 1700 1600 1500 1400 1300Wavenumber (cm-1)

Tra

nsm

itta

nce

a

b

c

d

e

f

g

h

i

j

3500 3000 2500 2000 1500 1000 500Wavenumber (cm-1)

Tra

nsm

itta

nce

a

b

c

d

e

f

g

h

ij

Figure S2: FTIR spectra of various peptides and their Co-based hybrid; the enlarged view for the

range 1800-1300 cm-1 is shown in the right side: (a) YVL, (b) Co-YVL, (c) FVL, (d) Co-FVL, (e)

YVLV, (f) Co-YVLV, (g) VVD, (h) Co-VVD, (i) VVE, and (j) Co-VVE.


5

250 300 350 400 450 500Wavelength (nm)

Ab

sorb

ance

Acidic pH

Basic pH

YVL

Cu-YVL

YVL

Cu-YVL

Co-YVL

Co-YVL

Figure S3: UV-vis absorption spectra of YVL, Cu-YVL and Co-YVL in acidic pH 3 and basic

pH 9 (arbitrary absorbance units). The absorption band for Cu-YVL is broadened may be due the

superimposition of tyrosine absorption and absorption due to the complex of the peptide with the

dissolved Cu(II) ions.


6

0 50 100 150 200 250 300T (K)

0

100

200

300

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

0.2

0.4

0.6

0.8

1χT

(em

u K

/mol

)

0 10 20 30 40 50 60 70 80T (K)

0

0.05

0.1

0.15

0.2

0.25

0.3

χ'

χ" (

emu

/mol

)

χ' χ"

-4 -2 0 2 4μ°H (T)

-0.4

-0.2

0

0.2

0.4

M (μ

B)

A B

C D

Figure S4: Magnetic characterization of the Cu-YVL hybrids: (A) χT as a function of

temperature, (B) Inverse of χ as a function of temperature, (C) Magnetic susceptibility as a

function of temperature in an ac field, and (D) Field dependant magnetization at 1.8 K.


7

0 50 100 150 200 250 300T (K)

0

0.2

0.4

0.6

0.8

1χT

(em

u K

/mol

)

0 50 100 150 200 250 300T (K)

0

100

200

300

400

1/χ

(mol

/em

u)

0 10 20 30 40 50 60 70 80T (K)

0

0.05

0.1

0.15

0.2

0.25

χ' χ

''(e

mu

/mol

) χ' χ"

-4 -2 0 2 4μ°H (T)

-0.4

-0.2

0

0.2

0.4

M (μ

B)

A B

C D

Figure S5: Magnetic characterization of the Cu-FVL hybrids: (A) χT as a function of


function of temperature in an ac field, and (D) Field dependant magnetization at 1.8K.


8

Figure S6: Magnetic characterization of the Cu-YVLV hybrids: (A) χT as a function of



0 50 100 150 200 250 300T (K)

0

100

200

300

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

0.2

0.4

0.6

0.8

1

χT (

emu

K/m

ol)

-4 -2 0 2 4

μ°H (T)

-0.4

-0.2

0

0.2

0.4

Μ (μ

B)

0 10 20 30 40 50 60 70 80T (K)

0

0.1

0.2

0.3

χ'

χ" (

emu/

mol

)

χ' χ"

A B

C D


9

0 50 100 150 200 250 300T (K)

0

100

200

300

400

500

1/χ

(mol

e/em

u)

0 50 100 150 200 250 300T (K)

0

0.2

0.4

0.6

0.8χT

(em

uK

/mol

)

-4 -2 0 2 4

μ°H(T)

-0.4

-0.2

0

0.2

0.4M

(μB)

0 10 20 30 40 50 60 70 80T (K)

0

0.015

0.03

0.045

0.06

0.075

χ' χ

" (

emu

/mol

)

χ' χ"

A B

C D

Figure S7: Magnetic characterization of the Cu-VVD hybrids: (A) χT as a function of




10

Figure S8: Magnetic characterization of the Cu-VVE hybrids: (A) χT as a function of


function of temperature in an ac field, and (D) Field dependant magnetization at 1.8 K..

0 50 100 150 200 250 300T (K)

0

100

200

300

400

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

0.2

0.4

0.6

0.8

χT (

emuK

/mol

)

-4 -2 0 2 4μ°H (T)

-0.4

-0.2

0

0.2

0.4

M (

μ B)

0 10 20 30 40 50 60 70 80T (K)

0

0.02

0.04

0.06

0.08

0.1

χ' χ

" (

emu

/mol

)

χ' χ"

A B

C D


11

0 50 100 150 200 250 300T (K)

0

10

20

30

40

50

60

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

4

8

12

16

20χT

(em

u K

/mol

)

-4 -2 0 2 4μ°H (T)

-4

-2

0

2

4M

(μ B

)

0 10 20 30 40 50 60 70 80T (K)

0

2

4

6

8

χ' χ

" (

emu

/mol

)

χ' χ"

A B

C D

Figure S9: Magnetic characterization of the Co-YVL hybrids: (A) χT as a function of




12

0 50 100 150 200 250 300T (K)

0

20

40

60

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

4

8

12

16χT

(em

u K

/mol

)

-4 -2 0 2 4

μ°H (T)

-3

-2

-1

0

1

2

3M

(μ B

)

0 10 20 30 40 50 60 70 80T (K)

0

1

2

3

4

5

χ'

χ" (

emu

/mol

) χ' χ"

A B

C D

Figure S10: Magnetic characterization of the Co-FVL hybrids: (A) χT as a function of




13

0 50 100 150 200 250 300T (K)

0

10

20

30

40

50

60

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

4

8

12

16

20χT

(em

u K

/mol

)

-4 -2 0 2 4μ°H (T)

-4

-2

0

2

4M

(μ B

)

0 10 20 30 40 50 60 70 80T (K)

0

2

4

6

8

10

12

χ'

χ" (

emu

/mol

) χ' χ"

A B

C D

Figure S11: Magnetic characterization of the Co-YVLV hybrids: (A) χT as a function of




14

0 50 100 150 200 250 300T (K)

0

20

40

60

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

40

80

120

χT (

emuK

/mol

)

-4 -2 0 2 4μ°H (T)

-2

-1

0

1

2M

(μ B

)

0 10 20 30 40 50 60 70 80T (K)

0

5

10

15

20

25

χ' χ

" (

emu

/mol

) χ' χ"

A B

C D

Figure S12: Magnetic characterization of the Co-VVD hybrids: (A) χT as a function of




15

0 50 100 150 200 250 300T (K)

0

20

40

60

1/χ

(mol

/em

u)

0 50 100 150 200 250 300T (K)

0

5

10

15

20

25χT

(em

uK/m

ol)

-4 -2 0 2 4μ°H (T)

-2

-1

0

1

2M

(μ B

)

0 10 20 30 40 50 60 70 80T (K)

0

5

10

15

20

25

χ' χ

" (

emu

/mol

) χ' χ"

A B

C D

Figure S13: Magnetic characterization of the Co-VVE hybrids: (A) χT as a function of




Supporting Information Peptide-Intercalated Layered Metal

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