Design and Application of Multifunctional Ligands

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Design and Application of Multifunctional Ligands

• Y. K. Agrawal
• Chemistry Department, School of Sciences,
• Gujarat University, Ahmedabad 380 009
• E mail drykagrawal_at_yahoo.com

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• I Hydroxamic Acids
• N-Arylhydroxamic acid
• Polymeric hydroxamic acid
• Dihydroxamic acid
• Fullerene hydroxamic acid.
• II Crown Ethers
• Crown Hydroxamic acid
• Aza Crown
• Crown Schiff Base
• Polymeric Crown Ethers
• Crown Calixarenes
• II Calixarenes/Resorcenes
• Calix(4)arene, Calix(6) arene and substituted
• Calix-Hydroxamic acid
• Calix-Crown-Hydroxamic acid
• Calix Schiff Base
• Poly Calixarenes
• IV Rotaxanes

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J. CHEM. SOC. PERKIN TRANS. II 1989
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SYNTH.REACT.INORG.MET.-ORG.CHEM., 30(7),
1317-1329(2000)
Fig 4. Suggested structure of Mononuclear Metal
Complexes M Cu(II), Co(II, Ni(II) and Mn(II).
Table III 1H NMR Chemical Shifts of Crown Ether
Schiff Base and its Metal Complexes
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Indian Journal of Chemical Technology, Vol. 9,
May 2002, pp-209-211
Fig 1. UV assembly for the photodecolourisation
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Indian Journal of Chemical Technology, Vol. 9,
May 2002, pp-209-211
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Analyst , November 1995, Vol. 20
25,26,27,28-tetrahydroxy-5,11,17,23-tetrakis(N-p-c
hlorophenyl)calix4 hydroxamic acid (CPCHA)
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Reactive Functional Polymers 50 (2002) 205-216
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Reactive Functional Polymers 53 (2002) 143-156
IIA
IA
IB
IIB
III
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Reactive Functional Polymers 53 (2002) 143-156
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KUMAR et al SEPARATION OF IRON AND TITANIUM FROM
KUTCH KAOLINS (INDIA)
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1. R -CH2CH3 X O
2. R -CH3 X O
3. R - CH2CH3 X S
Fig. Organophosphacalix(6)arenes
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Fullerene Sci. Tech., 5, 275 (1997)
N-Phenyl-(1,2methano-(fullerene)61- formohydroxami
c acid (PMFFA)
Vanadium(V) PMFFA complex HVO2A2
Fullerene Nanotubes Nanostructure, 11, 135(2003)
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FULLERINES, NANOTUBES, AND CARBON
NANOSTRUCTURES VOL. 11, NO. 2, PP. 135-154, 2003
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Ion Selectrodes
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Fullerene Carbonenanotubes Nanostruct, 12, 2004
Figure 6(a). La(III)-PMFFA complex(13)
Figure 6(b). Cerium(lV)-PMFFA complex(12)
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Fullerene Carbonenanotubes Nanostruct, 12, 2004
Table 3. Distribution constant (Kex) and
stability constant (log ?2ke) of
lanthanum(lll)-PMFFA and cerium(lV)-PMFFA at 25º C
Average Kex 5.0 ? 10-9 and log ?2Ke22.50 ?
0.40 for lanthanum Kex 3.9 ? 0.30 x 10-9 and
log ?2Ke 21.51 ? 0.30 for cerium.
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Fullerene Carbonenanotubes Nanostruct, 12, 2004
Figure 5. Plot of log DM against - logPMFFA
for----- Ce(IV) and -x-x-La(III)
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Table 6. Effect of diverse ions
Lanthanum 10 mg ml-1 pH 8.5 PBCHA 10
ml (4.5 x 10-3 M) Solvent Chloroform ?max
385nm
log
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Fullerene Carbonenanotubes Nanostruct, 12, 2004
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Figure 7. Preconcentration and separation of
lanthanum and cerium
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Figure 10. Membrane transportation of
(-?-?-) lanthanum (I, 0.40, II, 0.60 m. moles)
and (-?-?-) cerium (III, 0.20 IV 0.30 m moles)
and retention (-o-o-) of lanthanum (V, VI) and
(-?-?-) of cerium (VII, VIII) with time
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Scheme of the synthesis of Poly-?-styrene-(1,2
methano fullerene C60) 61- formo hydroxamic acid
(PSMFFA)
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Physical Properties of the Resin
Determination of REES by ICP-MS
Determination limits were defined as 3 times the
standard deviation of 10 runs of blank
measurements.
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pH of Sorption and Kd values of REES
Kinetics of Elution for REES
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Variation of log D with pH of REES
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Elution of REES at various pH
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Distribution ratio of PMFFA between aqueous and
SF-CO2 at various pressure (1) 10 (2) 12 (3) 15
(4) 20 (5) 25 and (6) 40 Mpa.
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Fig 3 Distribution ratio of U(VI) between
aqueous phase and (1) dichloromethan (2)
Chloroform, (3) SF-CO2-2O MPa and (4) SF-CO2- 4O
MPa
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Variation of log DPMFFA with pH of
uranium-PMFFA complex in SF-CO2
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Recognition and Separation of Element s with HA
and Supramolecules
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Indian Journal of Chemistry Vol. 42A, December
2003, pp. 3000-3005
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Compound I - m-(?-methyl benzyl
carboxamide)XAD-4 Compound II -
m-2-carbamoyl-3-(4-imidazolyl)methyl
propanoateXAD-4 Compound III -
25,26,27,28-tetrahydroxy7,19-dicarboxylic-1,13-bis
- -2-carbamoyl-3-(4-imidazolyl)methyl
propanoate calix4arene
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Compound IV 37,38,39, 40, 41,42 hexahydorxy
7,13,25,31-tetra
carboxylic 1,19-bis-?-methyl benzyl
carboxamide-calixarene Compound V-
?-2-carbamoyl-3-(4-imidazolyl)methyl propanoate
polystyrene
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Acknowledgement

• The Contribution of the Research Scholars is
  gratefully acknowledged. The financial assistance
  given by GMDC Science and Research Centre,
  Ahmedabad, DST, CSIR and UGC New Delhi, Royal
  Society of Chemistry, London, Vant Hoff Funds
  Amsterdam, INTAS Pharmaceutical Ahmedabad and
  CORE Laboratory Ahmedabad are greatfully
  acknowledged.