Dr. Girijesh Kumar - Academia.edu (original) (raw)

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Papers by Dr. Girijesh Kumar

Research paper thumbnail of Bifunctional metal-organic frameworks as selective turn-on fluorescence sensors for tryptophan and heterogeneous catalysts for Knoevenagel condensation reaction

Materials Today Chemistry

Research paper thumbnail of Metal–Organic Frameworks: Promising Materials for Methane Storage

Research paper thumbnail of A Doubly Interpenetrated Cu<sup>II</sup> Metal–Organic Framework for Selective Molecular Recognition of Nitroaromatics

Crystal Growth & Design, Oct 15, 2020

Herein, we report the design, synthesis, and structural characterization of a novel 2-fold interp... more Herein, we report the design, synthesis, and structural characterization of a novel 2-fold interpenetrated CuII metal–organic framework Cu-MOF-1 [{Cu2(L)(oba)2}·DMF·H2O]α. A single-crystal X-ray an...

Research paper thumbnail of A Doubly Interpenetrated Cu(II)‐based Metal‐Organic Framework as a Heterogeneous Catalyst for the ipso ‐Hydroxylation of Arylboronic Acids

European Journal of Inorganic Chemistry

Research paper thumbnail of CCDC 2102593: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1975050: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1884876: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1884871: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1474666: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1865486: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1439280: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1921704: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 886765: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1537786: Experimental Crystal Structure Determination

Research paper thumbnail of Synthesis and characterization of 1D-Co/Zn MOFs having potential for efficient dye adsorption from wastewater

Journal of Molecular Structure, 2021

Two stable metal-organic frameworks, [Co(api)(nita)] •DMF(Co-MOF) and [Zn 2 (api) 2 (nita) 2 ] •D... more Two stable metal-organic frameworks, [Co(api)(nita)] •DMF(Co-MOF) and [Zn 2 (api) 2 (nita) 2 ] •DMF(Zn-MOF), (where api = 1-(3-aminopropyl)imidazole and nita = 5-nitroisophathlic acid), were synthesized by solvothermal method. The MOFs were characterized by Single Crystal X-ray, thermogravimetric analysis and morphological studies. Single crystal X-ray reveals that both the MOFs exhibit discrete honeycomb like structure along a-axis. These were thermally stable up to 300 °C. Dye adsorption testing was performed on the synthesized MOFs for the removal of textile dyes, Reactive Black5 (RB5) and Methyl Orange (MO) from the aqueous solutions. Co-MOF was found to be the best system that displayed significantly good results and was further explored in depth to evaluate its efficiency of the dye adsorption phenomenon. The influence of operational parameters such as the effect of contact time, pH of the untreated water, adsorbent dosage and dye concentration was investigated individually for the Co-MOF. The optimized conditions for RB5 were pH 4, contact time of 60 min, adsorbent dosage 400 mg/L and for MO, it was pH 3, a contact time of 30 min, dosage of adsorbent 500 mg/L. The Co-MOF showed 78.24 ± 0.9% adsorption for RB5 and 54.12 ± 1.1% for MO under optimized conditions.

Research paper thumbnail of Coordination frameworks containing compounds as catalysts

Inorganic Chemistry Frontiers, 2017

This article describes a collection of MOF containing compounds as catalysts in a diverse range o... more This article describes a collection of MOF containing compounds as catalysts in a diverse range of organic transformation reactions.

Research paper thumbnail of Metal–Organic Framework-Based Selective Molecular Recognition of Organic Amines and Fixation of CO2 into Cyclic Carbonates

Research paper thumbnail of CCDC 1056595: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1879768: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1950444: Experimental Crystal Structure Determination

Research paper thumbnail of Bifunctional metal-organic frameworks as selective turn-on fluorescence sensors for tryptophan and heterogeneous catalysts for Knoevenagel condensation reaction

Materials Today Chemistry

Research paper thumbnail of Metal–Organic Frameworks: Promising Materials for Methane Storage

Research paper thumbnail of A Doubly Interpenetrated Cu<sup>II</sup> Metal–Organic Framework for Selective Molecular Recognition of Nitroaromatics

Crystal Growth & Design, Oct 15, 2020

Herein, we report the design, synthesis, and structural characterization of a novel 2-fold interp... more Herein, we report the design, synthesis, and structural characterization of a novel 2-fold interpenetrated CuII metal–organic framework Cu-MOF-1 [{Cu2(L)(oba)2}·DMF·H2O]α. A single-crystal X-ray an...

Research paper thumbnail of A Doubly Interpenetrated Cu(II)‐based Metal‐Organic Framework as a Heterogeneous Catalyst for the ipso ‐Hydroxylation of Arylboronic Acids

European Journal of Inorganic Chemistry

Research paper thumbnail of CCDC 2102593: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1975050: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1884876: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1884871: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1474666: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1865486: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1439280: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1921704: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 886765: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1537786: Experimental Crystal Structure Determination

Research paper thumbnail of Synthesis and characterization of 1D-Co/Zn MOFs having potential for efficient dye adsorption from wastewater

Journal of Molecular Structure, 2021

Two stable metal-organic frameworks, [Co(api)(nita)] •DMF(Co-MOF) and [Zn 2 (api) 2 (nita) 2 ] •D... more Two stable metal-organic frameworks, [Co(api)(nita)] •DMF(Co-MOF) and [Zn 2 (api) 2 (nita) 2 ] •DMF(Zn-MOF), (where api = 1-(3-aminopropyl)imidazole and nita = 5-nitroisophathlic acid), were synthesized by solvothermal method. The MOFs were characterized by Single Crystal X-ray, thermogravimetric analysis and morphological studies. Single crystal X-ray reveals that both the MOFs exhibit discrete honeycomb like structure along a-axis. These were thermally stable up to 300 °C. Dye adsorption testing was performed on the synthesized MOFs for the removal of textile dyes, Reactive Black5 (RB5) and Methyl Orange (MO) from the aqueous solutions. Co-MOF was found to be the best system that displayed significantly good results and was further explored in depth to evaluate its efficiency of the dye adsorption phenomenon. The influence of operational parameters such as the effect of contact time, pH of the untreated water, adsorbent dosage and dye concentration was investigated individually for the Co-MOF. The optimized conditions for RB5 were pH 4, contact time of 60 min, adsorbent dosage 400 mg/L and for MO, it was pH 3, a contact time of 30 min, dosage of adsorbent 500 mg/L. The Co-MOF showed 78.24 ± 0.9% adsorption for RB5 and 54.12 ± 1.1% for MO under optimized conditions.

Research paper thumbnail of Coordination frameworks containing compounds as catalysts

Inorganic Chemistry Frontiers, 2017

This article describes a collection of MOF containing compounds as catalysts in a diverse range o... more This article describes a collection of MOF containing compounds as catalysts in a diverse range of organic transformation reactions.

Research paper thumbnail of Metal–Organic Framework-Based Selective Molecular Recognition of Organic Amines and Fixation of CO2 into Cyclic Carbonates

Research paper thumbnail of CCDC 1056595: Experimental Crystal Structure Determination

An entry from the Cambridge Structural Database, the world's repository for small molecule cr... more An entry from the Cambridge Structural Database, the world's repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Research paper thumbnail of CCDC 1879768: Experimental Crystal Structure Determination

Research paper thumbnail of CCDC 1950444: Experimental Crystal Structure Determination