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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).
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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 1.8K.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
8
Figure S6: Magnetic characterization of the Cu-YVLV 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.
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
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
10
Figure S8: Magnetic characterization of the Cu-VVE 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..
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
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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
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.
Electronic Supplementary Material (ESI) for Chemical ScienceThis journal is © The Royal Society of Chemistry 2012
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