1. Synthesis, Characterization and Phosphotriesterase Mimetic Activity of Some Zn(II) and Cu(II) Complexes, M. Singh, R. J. Butcher, J. P. Jasinski, J. A. Golen, and G. Mugesh; J.Chem. Sci. 124(6), 2012, 1301-1313.
2.Mn(II) complexes of N′-(2-methoxybenzoyl)hydrazine carbodithioic acid ethyl ester: synthesis, spectral and structural characterization, M. Singh, M. K. Bharty, A. Singh, S. Kashyap, U. P. Singh, N. K. Singh. Transition Metal Chemistry, 38(8), 2012 695-703
3. First row transition metal complexes of benzyl N´‐(2‐methoxybenzoyl)hydrazine carbodithioate (H2mbhcd): X‐ray structure of [Mn(Hmbhcd)2(o‐phen)].dmso and [Mn2(Hmbhcd)2(2,2'‐bpy)2(μ‐OAc)2]. M. Singh, R. J. Butcher and N. K. Singh, Polyhedron, 28(7), 2009, 1197‐1204.
4. Syntheses and X‐ray crystallographic studies of {[Ni(en)2(pot)2]0.5CHCl3} and [Ni(en)2](3‐pytol)2. M. Singh, R. J. Butcher, A. K. Pandey and N. K. Singh, Polyhedron 28(3),2009, 461‐ 466.
5. Synthesis, spectroscopic and crystal structure investigation of [Cu(bzsmp)2Cl2]; {bzsmp = 2‐benzyl sufanyl‐ 5‐(2‐methox yphenyl)‐1,3,4‐oxadiazole}:cyclization of 6. N2‐[bis(benzyl sulfanyl)methylene]‐2‐methoxybenzohydrazide to 2‐benzylsulfanyl‐5‐(2‐methoxyphenyl )‐1,3,4‐oxadiazole during complexation M. Singh, V. Aggarwal, U. P. Singh and N. K. Singh, Polyhedron 28(1), 2009, 195‐199.
6. Synthesis, characterization and spectroscopic studies of a new ligand [N'‐(2‐methoxy benzoyl)hydrazine]carbodithiote] ethyl ester and its Mn(II) and Cd(II) complexes: X‐ray structural study of Mn(II) complex. M. Singh, R. J. Butcher and N. K. Singh, Polyhedron, 28 (1), 2009, 107‐112.
7. Synthesis and spectroscopic investigation of iron(III) complexes of N'‐(thioaroyl) pyridine‐2‐carbohydrazide. N.K.Singh, M. Singh, P.Tripathi, A.K.Srivastava and M.J.K.Thomas, Hyperfine interact, 185, 2008, 133‐137.
8. Spectroscopic and structural studies of the 2D Mn(II) coordination polymer from a bridging Noxa, Npy bidentate ligand; tetra‐n‐butylammonium[5‐(3‐pyridyl)‐1,3,4‐ oxadiazole‐2‐thiolate]. M. Singh, R. J. Butcher and N. K. Singh, Polyhedron 28(1), 2009, 95‐100.
9. Synthesis and X‐ray structural studies of N'‐(pyridine‐3‐carbonyl)hydrazine carbodithioic acid ethyl ester (H2pchc) and [Mn(Hpchc)2(o‐phen)]. M. Singh, R. J. Butcher and N. K. Singh, Polyhedron, 27(17), 2008, 3451‐3460.
10. Syntheses and X‐ray structural studies of two novel complexes [Ni(en)2(3‐pyt)2] and [Cu(en)2](3‐pyt)2 based on 5‐(3‐pyridyl)‐1,3,4‐oxadiazole‐2‐thione. M. Singh, R. J. Butcher and N. K. Singh, Polyhedron, 27(14), 2008, 3151‐3159.
11. Synthesis of a new N,N'‐ ethane‐1,2‐bis(4‐methoxyphenyl)carbothioamide ligand and its Cu(I) and Ag(I) complexes. N. K. Singh, M. Singh, P. Tripathi, A. K. Srivastava and R. J. Butcher, Polyhedron, 27 (1), 2008, 375‐382
12. TriethylammoniumN'‐(benzylsulfanyl‐thiocarbonyl)‐2‐hydroxybenzohydrazidate. M. Singh, A.K. Shrivastava, N. K. Singh, R. K. Sharma and A. Shrivastava. Acta Cryst. Sec E64 (2008) o339
13. 2‐Methoxy‐N'‐(morpholin‐4‐ylcarbonothioyl)benzohydrazide hemihydrate. M. Singh, A. K. Shrivastava, N.K.Singh, R.K.Sharma and A. Shrivastava, Acta Cryst. Sec E63 (2007) o4895.
14. Benzyl N'‐(2‐methoxybenzoyl)hydrazinecarbodithioate. N.K.Singh, M. Singh and R.J.Butcher, Acta Cryst. Sec E63 (2007) o4679.
15. N2‐[Bis(benzylsulfanyl)methylene]‐2‐methoxybenzohydrazide. N. K. Singh, M. Singh, R. J. Butcher, Acta Cryst. Sec E63 (2007) o4405
16. Tetrabutylammonium [5‐(2‐hydroxy‐phenyl)‐1,3,4‐oxadiazole‐2‐thiol]. N. K. Singh, A. K. Pandey, M. Singh, M. K. Bharty and R. J. Butcher, Acta Cryst. Sec E63 (2007) o4327.