Shampa Chakraborty - Academia.edu (original) (raw)

Papers by Shampa Chakraborty

Waste Water Technology Division, National Engineering Research Institute, Nagpur-440 020, Maharas... more Waste Water Technology Division, National Engineering Research Institute, Nagpur-440 020, Maharashtra, India E-mail: sh.chakraborty@neeri.res.in Department of Chemistry, Indian Institute of Engineering Science & Technology, Shibpur, Howrah-711 103, West Bengal, India E-mail: spgoswamical@yahoo.com X-Ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia E-mail: ckquah@usm.my Manuscript received 22 March 2018, revised 11 April 2018, accepted 08 May 2018 A new convenient synthesis of aldol compounds starting from pyruvaldehyde dimethyl acetal has been described. This method conveniently led to the synthesis of some biologically important compounds 1,2. A new synthesis of 3-arylmethylidine pentane- 2,4-diones is reported via usual Knoevenagel condensation which has a significant role in synthesizing different sensors for ...

ChemistrySelect, 2020

Heavy metal detection by sensing technology is an important field of research as the heavy metals... more Heavy metal detection by sensing technology is an important field of research as the heavy metals are toxic and are found in the environmental matrix. The detailed structure and sensing property studies of the probes enhance the knowledge for the future design and development of a probe for same metal. In this review, we have discussed about different chemo and fluorosensors for copper detection and their sensing parameters in different media with detailed structural studies. The removal of copper from the water medium is also addressed in this review. Application of membrane process, adsorption, and electrocoagulation along with their implementation challenges are discussed.

Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DH... more Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DHQ) and HQNM (Goswami S et al. 2013 Tetrahedron Lett. 54, 5075–5077. (doi:10.1016/j.tetlet.2013.07.051); Goswami S et al. 2014 RSC Adv. 4, 20 922–20 926. (doi:10.1039/C4RA00594E); Goswami S et al. 2014 New J. Chem. 38, 6230–6235. (doi:10.1039/C4NJ01498G) are reported along with the theoretical study. Among them, QA is not acting as an active probe, but DHQ and HQNM are serving as a selective and sensitive probe for the Fe3+ cation and the Ni2+ cation, respectively. DHQ can also detect the Fe3+ in commercial fruit juices (grape and pomegranate).

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.

Studies on Cucumber (Cucumis sativus L.) [Working Title], 2021

Cucumber is a healthy fruit which having lots of benefits. Cucumber regulates hydration and maint... more Cucumber is a healthy fruit which having lots of benefits. Cucumber regulates hydration and maintain adequate blood pressure and sugar, soothes skin, helped in digestion and reduces fat and help to weight loss. Cucumber contains a plenty of potassium, fiber, magnesium, manganese and vitamin A, C, K. Cucumber has several health beneficial activities such as antimicrobial properties, hydrating and detoxification, help in digestion and weight loss, preventing cancer and other fragile bone disease. In this book chapter we have discussed about the health beneficial activities of cucumber along with its different contents.

Inorganic Chemistry Communications, 2021

Abstract Cyanide ion sensing is one of the most important phenomena in recognition chemistry. Amo... more Abstract Cyanide ion sensing is one of the most important phenomena in recognition chemistry. Among all anions, cyanide is greatest interest because of its extreme toxicity and poisoning in environment and micromolar level of cyanide are fatal to humans. In contrast, cyanide compound can use as raw materials in fibers, resins, herbicides, and the gold-extraction process. Those processes also releases cyanide which is very detrimental. Therefore, efficient ways of determining cyanide ions are fairly essential. In this review, we are discussing about the detection of cyanide ion by different chemosensor and fluorosensor

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2021

Sensing technology for heavy metal detection is very crucial for recent decades as the detection ... more Sensing technology for heavy metal detection is very crucial for recent decades as the detection method is very easy, rapid, and does not require any pre-treatment of the sample. Nickel is a trace element in the human body and basically a moderate toxic element. There is a limited number of chemo and fluoro sensors reported for nickel as compared to other transition metal ion. Therefore, there is a need for the detailed structure and property studies of the nickel-probes as the knowledge can help in the upcoming development of probes for the nickel. In this review, we have discussed about different colorimetric, fluorimetric and fluorescent chemosensor and their structure, characterization, detection limit, association constant, media, and bio-imaging studies if they are active.

Materials Research Innovations, 2020

Reactions of 2-aminophenol, 2-aminobenzenethiol and other 2-substituted anilines (Scheme 1), ethy... more Reactions of 2-aminophenol, 2-aminobenzenethiol and other 2-substituted anilines (Scheme 1), ethylene amines and amino acid containing 1,2 amino hydroxy groups (Scheme 3) with TBTU [2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluroniumtetrafluoroborate], easily formed corresponding benzazoles (single crystal X-ray structure) and azoles attached with a dimethyl amino group at 2-position via a guanidine intermediate which cyclizes and aromatises by eliminating one dimethylamino group to afford benzazoles and azoles. The nobality of the synthesis is, single step and can occur at ambient temperature.

Inorganic Chemistry Communications, 2020

Abstract Detection of essential heavy metal ions for human biology and the environment is an impo... more Abstract Detection of essential heavy metal ions for human biology and the environment is an important research area in recent decades. Iron is the most important and fundamental metal ions among all of them. There are lots of hits of references for the chemo and fluoro sensors for any particular metal ion. We have tried to organized important iron chemo and fluorosensor references for discussion and sum up in an arranged way according to the moieties and structures. In this review, we have discussed more than ninety different iron references for the detection of heavy metal ions with specific reference to iron.

Inorganic Chemistry Communications, 2019

This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

Journal of Chemical Crystallography, 2019

Single crystal X-ray structures of new perchlorate salts of 6-carboxylic acid 5-deaza pterin perc... more Single crystal X-ray structures of new perchlorate salts of 6-carboxylic acid 5-deaza pterin perchlorates (cdpt) and 6-carboxylic acid 5-deaza pterin tetrahydro perchlorates (cdtpt) and chloropterin (cpt) are reported.

Royal Society Open Science, 2018

Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DH... more Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DHQ) and HQNM (Goswami S et al. 2013 Tetrahedron Lett. 54 , 5075–5077. ( doi:10.1016/j.tetlet.2013.07.051 ); Goswami S et al. 2014 RSC Adv. 4 , 20 922–20 926. ( doi:10.1039/C4RA00594E ); Goswami S et al. 2014 New J. Chem. 38 , 6230–6235. ( doi:10.1039/C4NJ01498G )) are reported along with the theoretical study. Among them, QA is not acting as an active probe, but DHQ and HQNM are serving as selective and sensitive probe for the Fe 3+ cation and the Ni 2+ cation, respectively. DHQ can also detect the Fe 3+ in commercial fruit juices (grape and pomegranate).

RSC Adv., 2014

A quinoxaline based colorimetric nickel sensor,HQAP[2-(quinoxalin-2-ylmethyleneamine)phenol] with... more A quinoxaline based colorimetric nickel sensor,HQAP[2-(quinoxalin-2-ylmethyleneamine)phenol] with high selectivity and sensitivity toward Ni2+ions is shown to have potential for practical use.

Tetrahedron Letters, 2013

ABSTRACT A new quinoxaline based receptor (HQNM) has been designed and synthesized which shows a ... more ABSTRACT A new quinoxaline based receptor (HQNM) has been designed and synthesized which shows a remarkable color change from colorless to yellow on specific binding with nickel. The cation recognition property of the receptor is monitored by the UV-vis and H-1 NMR titrations. It is observed that the receptor shows a specific selectivity toward nickel over other interfering cations. Thus, a significant bathochromic shift in UV-vis spectrum with a sharp yellow color in 'naked-eye' makes the receptor suitable for the easy detection of nickel ion.

Tetrahedron Letters, 2013

ABSTRACT We have designed and synthesized a triphenyl aminebenzothiazole coupled receptor (TBH) t... more ABSTRACT We have designed and synthesized a triphenyl aminebenzothiazole coupled receptor (TBH) that exhibits a selective, sensitive, colorimetric, and ratiometric rapid response toward cyanide anion in aqueous media. The sensing event is explained by spectroscopy along with DFT calculation and CV diagram. Sensor displays a very fast response (<1 min) toward cyanide at room temperature with a ‘naked-eye’ change over F− and AcO− in aqueous media.

Organic & Biomolecular Chemistry, 2014

ChemistrySelect, 2020

Studies on Cucumber (Cucumis sativus L.) [Working Title], 2021

Inorganic Chemistry Communications, 2021

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2021

Materials Research Innovations, 2020

Inorganic Chemistry Communications, 2020

Inorganic Chemistry Communications, 2019

Journal of Chemical Crystallography, 2019

Royal Society Open Science, 2018

Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DH... more Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DHQ) and HQNM (Goswami S et al. 2013 Tetrahedron Lett. 54 , 5075–5077. ( doi:10.1016/j.tetlet.2013.07.051 ); Goswami S et al. 2014 RSC Adv. 4 , 20 922–20 926. ( doi:10.1039/C4RA00594E ); Goswami S et al. 2014 New J. Chem. 38 , 6230–6235. ( doi:10.1039/C4NJ01498G )) are reported along with the theoretical study. Among them, QA is not acting as an active probe, but DHQ and HQNM are serving as selective and sensitive probe for the Fe 3+ cation and the Ni 2+ cation, respectively. DHQ can also detect the Fe 3+ in commercial fruit juices (grape and pomegranate).

RSC Adv., 2014

Tetrahedron Letters, 2013

Organic & Biomolecular Chemistry, 2014