Saikat Kumar Seth
Indian Association for the Cultivation of Science
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Saikat Kumar Seth.
CrystEngComm | 2011
Saikat Kumar Seth; Debayan Sarkar; Tanusree Kar
Two chromone derivatives C11H10O3 (1) and C11H10O2 (2) have been synthesized and characterized by X-ray structural studies with a detailed analysis of the Hirshfeld surfaces and fingerprint plots facilitating a comparison of intermolecular interactions in building different supramolecular architectures. The title compounds are associated through π–stacking interactions and the linear stacking of π–π forces can be thought as the influencing agent for the organization of the title compounds into hydrogen bonded supramolecular layers and are responsible as well for the strengthening of the molecular assembly. Investigation of the intermolecular interactions and crystal packing via Hirshfeld surface analysis reveals that more than two-thirds of the close contacts are associated with weak interactions. The fingerprint plots demonstrate that these weak interactions are important for both local and crystal packing. A comparison of the Hirshfeld surface in the compounds with similar substituted chromone derivatives in the Cambridge Structural Database (CSD) has been presented.
CrystEngComm | 2011
Saikat Kumar Seth; Debayan Sarkar; Amalesh Roy; Tanusree Kar
The crystallographic study of four acetophenone derivatives (1–4) is reported in the context of crystal engineering with a detailed analysis of Hirshfeld surfaces and fingerprint plots facilitating a comparison of intermolecular interactions in building different supramolecular self-assemblies. The X-ray study reveals that molecules of 1–4 are linked by cooperative weak C–H⋯O, C–H⋯π and π⋯π stacking interactions which are responsible for the formation and strengthening of molecular assembly. The substituting benzyl units are used as a potential scaffold for designing supramolecular self-assemblyvia C–H⋯π forces. Investigation of Hirshfeld surface analysis reveals a much more detailed scrutiny in comparison to these weak forces experienced by each compound. A comparison of Hirshfeld surfaces in the title derivatives with similar substituted and unsubstituted structures retrieved from the Cambridge Structural Database (CSD) has been presented.
Journal of Coordination Chemistry | 2009
Somnath Ray Choudhury; Chih-Yuan Chen; Saikat Kumar Seth; Tanusree Kar; Hon Man Lee; Enrique Colacio; Subrata Mukhopadhyay
A mononuclear Cu(II) compound [Cu(OAc)(2,2′-dypam)2](ClO4) (1), where HOAc and 2,2′-dypam are, respectively, acetic acid and 2,2′-dipyridylamine, has been synthesized and characterized by single crystal X-ray diffraction analysis. The cations of 1 link by N–H ··· O hydrogen bonds to form infinite 1-D zig-zag chains, which run along the b axis. Two adjacent chains along the c axis are joined by C–H ··· O hydrogen bonds to form a 2-D network. These 2-D layers are further bridged by perchlorate anions via weak anion-π interactions that act as a supramolecular glue to build the 3-D supramolecular network. Variable temperature (1.7–300 K) magnetic measurements revealed very weak intermolecular antiferromagnetic interactions at temperatures below 20 K between Cu(II) ions mediated by hydrogen bonds, C–H ··· π and π ··· π interactions. At temperatures ≥20 K, susceptibility data corresponds to isolated Cu(II) ions, indicating that the weak interactions affect the magnetism of 1 only at very low temperatures.
Journal of Molecular Structure | 2011
Saikat Kumar Seth; Gopal Chandra Maity; Tanusree Kar
Chemical Physics Letters | 2011
Saikat Kumar Seth; Nitish Chandra Saha; Soumen Ghosh; Tanusree Kar
Journal of Crystal Growth | 2010
Sweta Moitra; Saikat Kumar Seth; Tanusree Kar
Polyhedron | 2010
Sandip Saha; Debabrata Biswas; Partha Pratim Chakrabarty; Atish Dipankar Jana; Athanassios K. Boudalis; Saikat Kumar Seth; Tanusree Kar
Journal of Molecular Structure | 2010
Saikat Kumar Seth; Sukdeb Banerjee; Tanusree Kar
Journal of Molecular Structure | 2010
Saikat Kumar Seth; Biswajit Dey; Tanusree Kar; Subrata Mukhopadhyay
Polyhedron | 2012
Nitis Chandra Saha; Chinmoy Biswas; Atanu Ghorai; Utpal Ghosh; Saikat Kumar Seth; Tanusree Kar