Growth of Morpholin-4-ium hydrogen tartrate single crystal for optical limiting application

George, Jesby; George, M. C.; Alex, Javeesh; Sajan, D.; Shihab, N.K.; Vinitha, G.; Читра, Р.

doi:10.1016/j.optlastec.2019.105647

Cited by 8 publications

(2 citation statements)

References 39 publications

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“…While the para-bound nitro group is nearly coplanar with the plane of the benzene ring [dihedral angle of À1.0 (2) ] and two ortho-oriented nitro groups are, probably as a result of repulsion with the phenolic oxygen atom, twisted from the ring plane by À51.9 (2) and 43.8 (2) . It has been mentioned previously that the nitro groups of the picrate anion play an important role in stabilizing the crystal packing via weak coulombic interactions (George et al, 2019;Anitha et al, 2004).…”

Section: Structural Commentarymentioning

confidence: 99%

Crystal structure of 2-(morpholino)ethylammonium picrate monohydrate

Chidambaranathan¹,

Sivaraj²,

Selvakumar³

2023

Acta Cryst E

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The title compound, C6H15N2O+·C6H2N3O7 −·H2O, was synthesized via slow evaporation of an aqueous solution of picric acid with the substituted morpholine base and crystallized with one cation (C6H15N2O)+, one anion (C6H2N3O7)− and a water molecule in the asymmetric unit. The morpholine ring in the cation adopts a chair conformation. The structure is stabilized by C—H...O, O—H...O, O—H...N and N—H...O hydrogen-bonding interactions and π–π stacking. The intermolecular interactions of the synthesized compound were quantified by Hirshfeld surface analysis.

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Section: Structural Commentarymentioning

confidence: 99%

Crystal structure of 2-(morpholino)ethylammonium picrate monohydrate

Chidambaranathan¹,

Sivaraj²,

Selvakumar³

2023

Acta Cryst E

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“…This suggests that this compound is more polar in the excited state than in the ground state. The red shift can also be explained by the hydrogen donor ability of the compound and the hydrogen acceptor nature of some solvents [26].…”

Section: Electronic Absorption Spectramentioning

confidence: 99%

Spectroscopic study of solvent effects on the electronic absorption spectra of morpholine and its complexes

et al. 2023

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The electronic absorption spectra of morpholine and its five morpholine complexes have been studied in different solvents of various polarities. The regression and correlation coefficients have been calculated with the SPSS program. Solvation energy relationships were deduced from spectral shifts and correlated with solvent parameters α (solvent hydrogen bond donor acidity), β (solvent hydrogen bond acceptor basicity), and π* (dipolarity/polarizability). The percentage contributions of the calculated solvatochromic parameters show that classic solvation effects play a major role in explaining the spectral shifts in all investigated complexes. The blue shift of [Fe(MOR)3Cl3]·4H2O, [Ni(MOR)4Cl2]·4H2O, and [Cu(MOR)4Cl2]·6H2O complexes is due to the formation of hydrogen bonds, which suggests the stabilization of the ground electronic state compared with the excited state. [CuNi(MOR)2Cl4]·4H2O and [CuZn(MOR)3Cl4]·2H2O are mixed metal complexes that suffer a red shift due to the solute-solvent interactions, which causes stabilization of the excited solute state with increasing solvent polarity. The bands are affected by specific solute-solvent interactions including hydrogen bond donor ability (acidity) and hydrogen bond acceptor ability (basicity) and nonspecific solute-solvent interactions including electromagnetic interaction between the dipole moments of solute and polar solvents.

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