1. Monika Singh and Arunachalam Ramanan, Crystal Engineering of Polyoxomolybdates Based Metal–Organic Solids: The Case of Chromium Molybdate Cluster Based Metal Complexes and Coordination Polymers Cryst. Growth Des. (2011) 11 3381 – 3394
  2. Katikaneani Pavani, Monika Singh and Arunachalam Ramanan, Oxalate bridged copper pyrazole complex templated Anderson-Evans cluster based solids, Aus. J. Chem. (2011) 64 68 – 76.
  3. Amit Singh, Arunachalam Ramanan and D. Bandyopadhyay, Link between isostructurality, polymorphism, weak interactions in palladacycle crystals: Chemical insight, Cryst. Growth Des. (2011) 11 2743 – 2754.
  4. Jency Thomas and Arunchalam Ramanan,  Phosphomolybdate cluster based solids by transition metal complexes, Inorg. Chim.. Acta  (2011) 372 243 – 249.


  1. Monika Singh, Samuel E. Lofland, Kandalam V. Ramanujachary and Arunachalam Ramanan, Crystallization of Anderson-Evans type Chromium Molybdate Solids incorporated with Metal pyrazine complex or coordination polymer, Cryst. Growth Des. (2010) 10 5105 – 5112.
  2. Purnendu Parhi, Shailesh Upreti and A. Ramanan, Crystallization of calcium vanadate solids from solution: A metathetic route, Cryst. Growth Des. (20101) 101 5078 –5084.
  3. Monika Singh, Dinesh Kumar, Jency Thomas and Arunachalam Ramanan, Crystallization of Copper(II) Sulfate based Minerals and MOF from solution: Chemical insights into the supramolecular interactions, J. Chem. Sci.(2011) 122 757 – 769.
  4. K. Birada, A. Ramanan and J.J. Vittal, Coordination polymers versus metal organic frameworks, Growth & Design (2009) 9 2969-2970.
  5. K. Pavani, M. Singh, A. Ramanan, Sam Loftland and KV Ramanujachary, Engineering copper molybdates: Pyridazine directed pseudomolybdates, J. Mol. Str. (2009) 933 156-162.
  6. J. Thomas, M. Agarwal, A. Ramanan, N. Chernova and M.S. Whittingham, Copper pyrazole directed crystallization of decavanadates: synthesis and characterization of {Cu(pz)}4[{Cu(pz)3}2V10O28] and (Hpz)2[{Cu(pz)4}2V10O28]·2H2O, CrystEngComm (2009) 11 625-631.
  1. Monika Singh, Jency Thomas and Arunachalam Ramanan, Understanding Supramolecular Interactions Provides Clues for Building Molecules into Minerals and Materials: a Retrosynthetic Analysis of Copper-Based Solids, Aus. J. Chem. (2010) 63, 565 – 572.
  2. J. Thomas and A. Ramanan, Growth of Copper Pyrazole Complex Templated Phosphomolybdates: Supramolecular Interactions Dictate Nucleation of A Crystal, Crystal Growth & Design (2008) 8 3390-3400.
  3. S. Upreti and A. Ramanan, Diphosphopentamolybdate based hybrid solids: hydrophilic pockets that favors clustering of water molecules, Special Issue on water Clusters in Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry (2008) 38 69-75.
  4. J. Thomas and A. RamananGrowing Crystals from Solution: By Design or By Default, Current Science (2007) 93 1664-1667.
  5. S. Upreti and A. Ramanan, Role of Nonbonding interactions in the Crystal Growth of Phenazinediamine Tetrahydrate: New Insights into the Occurrence of 2D Water Layers in Crystal Hydrates, Crystal Growth & Design (2007) 7 966-971.
  6. J. Thomas and A. Ramanan, Nanostructured Phosphomolybdates, J. Chem. Sci. (2008) 120 529–536.
  7. J. Thomas, M. Asnani,  S. Sharma and A. Ramanan, Nanostructured Vanadates, VOLUMES 11-15 of the Encyclopedia of Nanoscience and Nanotechnology (2008) 120 529-536.
  8. S. Sharma, J. Thomas, A. Ramanan, M. Panthöfer and M. Jansen, Hydrothermal synthesis of vanadium oxide nanotubes from oxide precursors, J. Nanosci Nanotechnol. (2007) 7 1985-1989.
  9. K. Pavani, Sam Loftland, KV Ramanujachary and A. Ramanan, Hydrothermal synthesis of transition metal complex templated octamolybdates, Eur. J. Inorg. Chem. (2007) 568-578.
  10. Purnendu Parhi, A. Ramanan and A.R. Ray, Metathetical reaction in reverse micelles, J. Amer. Cer. Soc. (2007).
  11. M. Asnani, J. Thomas, P. Sen and A. Ramanan, Surfactant controlled synthesis of crystalline phosphovanadate nanorods, Mat. Res. Bull. (2007) 42 686-695.
  12. Purnendu Parhi, A. Ramanan and A.R. Ray, Nanocrystalline powders of alkaline-earth phosphates as precursors for bioceramics, Amer. J. Biochem. & Biotech. (2006) 2 61-65.
  13. Purnendu Parhi, A. Ramanan and A.R. Ray, Hydrothermal synthesis of nano-size alkaline-earth hydroxyapatite through microwave assisted metathesis reactions J. Mater. Sci. (2006) 41 1455-1458.
  14. Purnendu Parhi, A. Ramanan and A.R. Ray, Synthesis of nano-sized alkaline-earth hydroxyapatites through microwave assisted metathesis route, Mater. Lett. (2006) 60 218-221.
  15. K. Pavani, S. Upreti and A. Ramanan, Two new polyoxovanadate clusters templated through cysteamine, J. Chem. Sci. (2006) 118 159-164.
  16. Jency Thomas, Sanjeev Sharma, S. E. Lofland,K.V. Ramanujachary and A. Ramanan, Formation of high nuclearity mixed-valent polyoxovanadates in the presence of copper amine complexes, J. Chem. Sci. (2006) 118 79-86.
  17. K. Pavani, A. Ramanan and M.S. Whittingham, Hydrothermal synthesis of copper coordination polymers based on molybdates: Chemistry Issues, J. Mol. Str. (2006) 796 179-186.
  18. A. Ramanan and M.S. Whittingham, How Molecules turn into solids: The case of metal organic frameworks, Crystal Growth & Design (2006) 6 2419-2421.
  19. S. Upreti and A. Ramanan, Role of Hydrogen-Bonded Interactions in the Crystal Packing of Phenylenediammonium Phosphomolybdates, Crystal Growth & Design (2006) 6 2066-2071.
  20. R.S. Prasad, S.S. Singh, S. Upreti, N.K. Jha, A. Ramanan,   Tetraphenylarsonium diiododiisothiocyanatocobaltate(II),   Acta Cryst. E (2006) E62 m2990-m2991.
  21. S.S. Singh,  R.S. Prasad,  S. Upreti, N.K. Jha, A. Ramanan,   Tetraphenylarsonium diisothiocyanatodibromonickelate(II), Acta Cryst. E (2006) E62 m1014-m1015.


  1. S. Upreti and A. Ramanan, Structure Directing Role of Hydrogen bonded Dimers: Supramolecular Assemblies of Octamolybdate based Organic/Inorganic Hybrids, Crystal Growth & Design (2005) 5 1837 – 1843.
  2. Katikaneani Pavani and A. Ramanan, Influence of 2-aminopyridine on the formation of molybdates under hydrothermal condition, Eur. J. Inorg. Chem. (2005) 3080-3087.
  3. S. Upreti and A. Ramanan, Butane-1,4-diammonium diphosphopentamolybdate: a new inorganic-organic hybrid solid, Acta Cryst. (2005) E61 m414-m416.
  4. S. Upreti and A. Ramanan, The first examples of benzidinium cations templated  low-dimensional molybdates, Inorg. Chim. Acta  (2005) 358 1241-1246.
  5. Sanjeev Sharma, A. Ramanan and M. Jansen, Ion-exchange reactivity of organically intercalated layered vanadates, Materials Chemistry & Physics (2005) 91 257-260.
  6. S. Mahopatra and A. Ramanan, Hydrothermal Synthesis and Structural Study of Lanthanide Orthovanadates, LnVO4 (Ln = Sm, Gd, Dy and Ho), J. Alloys and Compounds (2005) 395 149-153.
  7. Sanjeev Sharma, A. Ramanan, Peter Y. Zavalij and M.S. Whittingham, The first example of a novel one-dimensional cyclic tetramericmetavanadate:[PPh4]2V4O11, CrystEngComm. (2002) 4 601-604.
  8. Minakshi Asnani, Sanjeev Sharma, Sam Loftland, KV Ramanujachary, PA Buffat and A. Ramanan, Novel topotactic conversion of an organically templated vanadyl phosphate framework into layered structures, Eur. J. Inorg. Chem. (2005) 401-409.
  9. Minakshi Asnani, A. Ramanan and J.J. Vittal, Hydrothermal synthesis and structural characterisation of a vanadium(V) borophosphate cluster containing solid:[Co(en)3][enH2]{V3BP3O19}.4.5H2O, Inorg. Chem. Commun. (2003) 6 589-592.
  10. P. Ayyappan, Minakshi Asnani, A. Ramanan and Y. Piffard, Hydrothermal Synthesis of a new ethylenediammonium intercalated vanadyl phosphate, [H3NCH2CH2NH3)0.5][V4+0.32V5+0.68O2PO4{P(OH)2}0.44], Proc. Ind. Acd. Sci. (2003) 115 33-40.
  11. S. Upreti and A. Ramanan, Direct hydrothermal synthesis of metal intercalated hexagonal molybdates, MxMo6–x/3O18–x(OH)x.yH2O (M = Li, Rb, Cs, NH4), Proc. Ind. Acad.  Sci. (2003) 115 411-417.
  12. T. Duraisamy, A. Ramanan, J. J. Vittal, Two new inorganic-organic hybrid salts:[NH2Me2]4[NMe4]2Mo0.5O4(Mo12O36)]·1.5H2O and [NMe4]2[NH4]2[Mo8O26]·2H2O, J. Mater. Chem. (1999) 3 763-767.
  13. Sanjeev Sharma, A. Ramanan, and J. J. Vittal, Morpholinium Intercalated Vanadophosphates, Proc. Ind. Acd. Sci. (2001) 113 621-632.
  14. P. Ayyappan, A. Ramanan and C.C. Torardi, New metal Intercalated Layered Vanadyl Phosphates, MxVOPO4.2H2O (M=Ag, Cu, Zn), Inorg. Chem. (1998) 37 3628-3634.
  15. A. Pring, U. Kolitsch, W.D. Birch, B.D. Beyer, P.Elliott, P. Ayyappan and A. Ramanan, Bariosincosite, a new hydrated barium vanadium phosphate, from the Spring Creek Mine, South Australia, Mineralogical Magazine, (1999) 63 735-741.
  16. P. Ayyappan, A. Ramanan, P.A. Joy and A. Pring, A convenient hydrothermal route for the synthesis of MxVOPO4.2H2O (M=Na and K), Solid State Ionics (1998) 107 53-57.
  17. Purnendu Parhi, Sathya Sadan, A.R. Ray and A. Ramanan, Mechanochemically assisted room temperature metathesis reaction for the synthesis of MMoO4 (M=Ca, Sr, Ba) , Bull. Mater. Sci. (2006) 29 115-118.
  18. Purnendu Parhi, A. Ramanan and A.R. Ray,   Preparation and characterization of alginate and hydroxyapatite-based biocomposit, J.  App.  Poly. Sci.  (2006), 102  5162-5165.
  19. Purnendu Parhi, A. Ramanan and A.R. Ray, A convenient Route for the synthesis of hydroxyapatite through a novel mediated metathesis reaction, Mater. Lett. (2004) 58 3610-3612.


  1. T. Duraisamy, A. Ramanan, and J. J. Vittal, Novel Self-assembled Decavanadate Clusters forming 1D Molecular Chains and 2D Molecular Arrays: [HMTA-HH2O][HMTA-CH2OH][H3V10O28{Na(H2O)4}].4H2O and [Na2(H2O)10[H3V10O28 {Na(H2O)2}].3H2O, Crystal Engineering (2000) 3 237-250.
  2. T. Duraisamy, Nishma Ojha, A. Ramanan, and J. J. Vittal,  New Inorganic-Organic Hybrid Materials Based on Polyoxovanadates: Morp]6[VO4V14O32(OH)6]·2H2O, [Morp]VO3, [HMTA-CH3]4[H2V10O28]·5H2O, and [HMTA-H][HMTA-CH2OH]2[H5V10O28]·6H2O, Chem. Mater. (1999) 11 2339-2349.
  3. P.K. Sharma and A. Ramanan, The Role of N,N-dimethylaniline in the formation of Titania Gel Monolith by Sol-gel Method, J. Mater. Sci. (1996) 31 773-777.
  4. Duraisamy and A. Ramanan, Nax/2Bi1-x/2MoxV1-xO4 and Bi1-x/3MoxV1-xO4 New Scheelite-related phases, Solid State Ionics 120 233-237 (1999).
  5. P.K. Sharma, A. Ramanan and N.Y. Vasanthacharya, Low-temperature Synthesis of Bismuth Cuprates, Mater. Res. Bull. 31 913-917 (1996).
  6. R.C.T. Slade, G.P. Hall, A. Ramanan and E. Prince, Structure and proton conduction in pyrochlore-type antimonic acid: a neutron diffraction study, Solid State Ionics (1996) 92 171-181.


  1. A. Ramanan and P.K. Sharma, Toward Rational Synthesis of Transition Metal Oxides, Proc. Ind. Acad. Sci. (Chem. Sci.) (1995) 107 171-177.
  2. P.K. Sharma, D.C. Agrawal and A. Ramanan, Mechanical Effect on the Stabilization of Ti(i-OBu)4 Sol, J. Mater. Sci. Lett. (1994) 13 1106-1107.
  3. R.C.T. Slade, G.P. Hall, A. Ramanan and J.M. Nicol, Neutron Scttering Studies of Protonic species in Ammonium Pentamolybdate, (NH4)Mo5.33H3O18, J. Chem. Soc. Faraday Trans. (1994) 90 3579-3584.
  4. K.P.Reis, A.Ramanan and M.S.Whittingham, Synthesis of Novel Compounds with the Pyrochlore and Hexagonal Tungsten Bronze Structures, J. Solid State Chem. (1992) 96 31-47.
  5. W. Gloffke, A. Skoczylas, A. Ramanan and M.S. Whittingham, Effect of Tungsten Substitution in the YBa2Cu3O7-x System, Mater. Lett. (1991) 10 477-480.
  6. K.P.Reis, A. Ramanan, W.Gloffke and M.S. Whittingham, Synthesis, Diffusion and Ion-Exchange in Open Structure Sodium Tungstates and YBaCu Tungstates, Mater. Res. Soc. Proc. (Solid State Ionics II) (1991) 210 473-486.
  7. K.P.Reis, A.Ramanan and M.S.Whittingham, Low-Temperature Hydrothermal Reduction of Ammonium Paratungstate, J. Solid State Chem. (1991) 91 394-396.


  1. K.P.Reis, A.Ramanan and M.S.Whittingham, Hydrothermal Synthesis of Sodium Tungstates, Chemistry of Materials (1990) 2 219-221.
  2. R.C.T. Slade, B.C. West A. Ramanan, W.T.A. Harrison and W.I.F. David, The Structure of LixKyWO3: A Powder Neutron Diffraction Study, Eur. J. Inorg. & Solid State Chem. (1989) 26 15-18.
  3. R.C.T. Slade, A. Ramanan, B.C. West, and E. Prince, Powder Neutron Diffraction Studies on V9Mo6O40, J. Solid State Chem. (1989) 82 65-69.
  4. R.C.T. Slade, A. Ramanan, P.R. Hirst and H.A. Pressman, Inelastic Neutron Scattering Spectra of Hydrogen and Ammonium Insertion Compounds of the metal Oxides MO3 (M=Mo and/or W), Mater. Res. Bull. (1988) 23 793-796.
  5. R.C.T. Slade, A. Ramanan, J.M. Nicol and C. Ritter, Synthesis, Characterization and Inelastic Neutron Scattering Spectra of Hydrogen Insertion Compounds of the Mixed V/Mo Oxide V9Mo6O40, Mater. Res. Bull. (1988) 23 647-651.
  6. C.N.R. Rao, J. Gopalakrishnan, K.Vidyasagar, A.K. Ganguli, A. Ramanan and L. Ganapathi, Novel Oxides Prepared by Ingenious Routes, J. Mater. Res. (1986) 1 150-165.
  7. L. Ganapathi, A. Ramanan, J. Gopalakrishnan and C.N.R. Rao, A Study of MoO3, WO3 and their Solid Solutions Prepared by Topotactic Dehydration of the Monohydrates, J. Chem. Soc. Chem. Commun. (1986) 62-63.
  8. A. Ramanan, J. Gopalakrishnan and C.N.R. Rao, Relative Stabilities of Layered Perovskite and Pyrochlore Structures in Transition Metal Oxides Containing Trivalent Bismuth, J. Solid State Chem. (1985) 60 376-383.
  9. A. Ramanan and J. Gopalakrishnan, Low-Temperature Preparations of Sillenite Phases in the Bi-M-O (M=Mn,Fe,Co) System, Indian J. Chem. (1985) 24A 594-596.
  10. J. Gopalakrishnan, A. Ramanan, C.N.R. Rao, D.A. Jefferson and D.J. Smith, A Homologous Series of Recurrent Intergrowth Structures of the type (A,Bi)2n+1M2n+1O6n+3 Formed by Oxides of the Aurivillius Family, J. Solid State Chem. (1984) 55 101-105.
  11. A. Ramanan, J. Gopalakrishnan, M.K. Uppal, D.A. Jefferson and C.N.R. Rao, Bismuth Tungsten Bronzes: A Study of Intergrowth Phases and Related Aspects, Proc. Roy. Soc. Lond. (1984) A395 127-139.
  12. D.A. Jefferson, M.K. Uppal, D.J. Smith, J. Gopalakrishnan, A. Ramanan and C.N.R. Rao, Intergrowth Tungsten Bronzes of Bismuth, Mater. Res. Bull. (1984) 19 535-537.
  13. D.A. Jefferson, M.K. Uppal, J. Gopalakrishnan, A. Ramanan,  and C.N.R. Rao, High Resolution Electron Microscopic Investigations of Layered Bismuth Tungsten Oxides, Studies in Inorg. Chem. (1983) 3 409-412.
  14. A. Ramanan, G.N. Subbanna, J. Gopalakrishnan and C.N.R. Rao, Novel Phases and Structural Transitions in Chromium and Iron Substituted Bismuth Tungstates Bi2-xMxWO6 (M=Cr,Fe), Rev. Chim. Miner. (1983) 20 576-587.
  15. D.A. Jefferson, J. Gopalakrishnan and A. Ramanan, Structural Adaptibility in the System Bi2O3-WO3: Higher Members of the Homologous Series Bi2WnO3n+3, Mater. Res. Bull. (1982) 17 269-276.
  16. A. Ramanan and J. Gopalakrishnan, Perovskites and Weberite Related Phases in the Na-Ln-Bi-O System (Ln=La,Nd,Gd or Y), Rev. Chim. Miner.(1982) 19 225-236.
  17. A. Ramanan, J. Gopalakrishnan and C.N.R. Rao, Ternary Bismuth Oxides Bi26-xMxO40-y (M=Mg,Al,Co and Ni) related to  g-Bi2O3, Mater. Res. Bull.(1981) 16 169-175.
  18. B. Viswanathan, A. Ramanan and T.K. Varadarajan, Magnetic Properties of HoFe2O4, Physica Status Solidii (a) (1979) 55, K87-K88.