A simple spectrophotometric based method for the detection of both the trivalent and hexa valent forms of chromium using 3-amino-2-pyrazine carboxylic acid (APC) is reported. Using APC as a ligand with Cr(NO3)3.6H2O a new mononuclear complex has also been synthesized and systematically characterized by elemental analysis and IR studies. Single crystal X-ray diffraction analysis reveals octahedral-type geometry with N3O3 coordination environments from the ligand. The optical sensing properties of APC for metal ions were enlightened by UV-Vis study. This sensor displays high selectivity and sensitivity towards Cr3+ in methanol. Interestingly the ligand displayed enhancement due to chelation with Cr3+and quenching while interacting with Cr6+ ions. Complete opposite spectroscopic behavior helps us to identify the oxidation state of chromium.The logical response of the molecular AND gate is realized and as the APC can efficiently sense Cr3+ in solitary as well as crowded conditions, presence of M+n ions would not have any effect to the logic functioning of the molecular AND gate.
Synthesis, characterization of one Cr (III) complex: An efficient chemosensor for Cr (III) ions and designing of a molecular logic gate / Chatterjee, A.; Chakraborty, P.; Kumar, B.; Rizzoli, C.; Mandal, P.; Dey, S. K.. - In: JOURNAL OF MOLECULAR STRUCTURE. - ISSN 0022-2860. - 1256:(2022), p. 132486.132486. [10.1016/j.molstruc.2022.132486]
Synthesis, characterization of one Cr (III) complex: An efficient chemosensor for Cr (III) ions and designing of a molecular logic gate
Rizzoli C.;
2022-01-01
Abstract
A simple spectrophotometric based method for the detection of both the trivalent and hexa valent forms of chromium using 3-amino-2-pyrazine carboxylic acid (APC) is reported. Using APC as a ligand with Cr(NO3)3.6H2O a new mononuclear complex has also been synthesized and systematically characterized by elemental analysis and IR studies. Single crystal X-ray diffraction analysis reveals octahedral-type geometry with N3O3 coordination environments from the ligand. The optical sensing properties of APC for metal ions were enlightened by UV-Vis study. This sensor displays high selectivity and sensitivity towards Cr3+ in methanol. Interestingly the ligand displayed enhancement due to chelation with Cr3+and quenching while interacting with Cr6+ ions. Complete opposite spectroscopic behavior helps us to identify the oxidation state of chromium.The logical response of the molecular AND gate is realized and as the APC can efficiently sense Cr3+ in solitary as well as crowded conditions, presence of M+n ions would not have any effect to the logic functioning of the molecular AND gate.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
