Photoresponsive polymers: 1. Preparation and properties of a polymer containing 2-phenyl-1,3-indandione as chromophore

Bratschkov, Christo; Minchev, S.; Schopov, Ivan

doi:10.1016/0032-3861(94)90357-3

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…The photophysical properties of 2-substituted 1,3-indandiones are of increasing interest because of the possible phototautomerisaton via Excited State Intramolecular Proton Transfer (ESIPT) process [1] as well as their application as polymer stabilizers [2] and sunscreen agents [3]. Recent studies have also focused on excited state twisting, as for N,N-dimethylaminobenzylidene-1,3-indandione [4,5], its solid-state optical properties [5,6] and application as non-linear optical materials [7].…”

Section: Introductionmentioning

confidence: 99%

A combined experimental and theoretical approach for structural study on a new cinnamoyl derivative of 2-acetyl-1,3-indandione and its metal(II) complexes

et al. 2008

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The synthesis, structure and spectral properties of a new cinnamoyl derivative of 2-acetyl-1,3-indandione (2AID), p-fluoro-cinnamoyl-1,3-indandione, LH and its metal(II) complexes with Cu(II), Zn(II) and Cd(II), are described. In order to verify the molecular structure of the free ligand and its metal complexes, model geometries based on the spectroscopic data were optimized using quantum chemical methods. The experimental spectroscopic data (IR and NMR) of the ligand, LH, complemented by the calculated ones, show that it exists in the exocyclic enolic form in the gas phase, solution and solid state. Good quality single crystals of Cd(II) complex were obtained from a DMSO solution and were studied by means of single-crystal X-ray diffraction. The data show bidentate coordination of the ligand and two DMSO molecules coordinated to the metal centre, thus forming a complex with octahedral geometry. On the contrary, the spectroscopic data on the amorphous samples indicate a square planar geometry of the Cu(II) complex and distorted octahedral geometry for Zn(II) and Cd(II) complexes with two water molecules coordinated to the metal centre. The used quantum chemical method for structure optimization of the transition metal complexes, B3LYP/LANL2DZ, shows very good agreement with the crystallographic data and, therefore, was also employed for structural determination for the non-crystalline complexes.

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Section: Introductionmentioning

confidence: 99%

A combined experimental and theoretical approach for structural study on a new cinnamoyl derivative of 2-acetyl-1,3-indandione and its metal(II) complexes

et al. 2008

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“…The 2-substituted 1,3-indandiones have attracted an increasing interest during the last few decades due to their photophysical properties [1][2][3][4][5]. Very strong fluorescence was reported for 2-(pyridyl)-and 2-(quinolyl)-1,3-indandiones [6,7].…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical study on the structure and optical properties of 2-acyl-1,3-indandiones – Conformational effects

Ahmedova¹,

Pavlović²,

Zhiryakova³

et al. 2010

Journal of Molecular Structure

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“…The main part of their fascinating properties and applications is connected with the known photophysical properties of 2-substituted 1,3-indandiones, which were the subject of intensified studies in the last few decades [18][19][20][21][22][23][24][25]. Very strong fluorescence, for example, has been observed for 2-(pyridyl)-and 2-(quinolyl)-1,3-indandiones [26].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and spectroscopic properties of some 2-substituted 1,3-indandiones and their metal complexes

et al. 2009

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New 2-acyl-1,3-indandione derivatives, compounds 1–4, were obtained by condensation of 2-acetyl-1,3-indandione with benzaldehyde, thiophene-2-aldehyde, thiophene-3-aldehyde and furane-2-aldehyde, respectively. The structures of the newly synthesized 2-substituted 1,3-indandiones were characterized by means of spectroscopic methods (FT-IR, 1H and 13C NMR, UV-Vis and MS). Based on the obtained results it is suggested that the compounds exist in the exocyclic enolic form. Mass spectral fragmentation paths are also proposed. In order to verify the possibility for tautomerization processes of the newly synthesized compounds their absorption spectra were recorded in various solvents. Furthermore, the complexation properties of the compounds with metal(II) ions were also studied. A series of non-charged complexes with Cu(II), Cd(II), Zn(II), Co(II) and Ni(II) was isolated and analyzed by elemental analyses and IR. The paramagnetic Cu(II) complexes were studied by EPR and distorted, flattened tetrahedral structures are predicted. The other metal complexes show the presence of water molecules, most probably coordinated to the metal ion, thus forming octahedral geometry. Ultimately, the studied properties of the newly synthesized compounds, 1–4, suggest that they may find application as extracting agents for metal ions, rather than as optical sensors.

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Photoresponsive polymers: 1. Preparation and properties of a polymer containing 2-phenyl-1,3-indandione as chromophore

Cited by 6 publications

References 3 publications

A combined experimental and theoretical approach for structural study on a new cinnamoyl derivative of 2-acetyl-1,3-indandione and its metal(II) complexes

A combined experimental and theoretical approach for structural study on a new cinnamoyl derivative of 2-acetyl-1,3-indandione and its metal(II) complexes

Experimental and theoretical study on the structure and optical properties of 2-acyl-1,3-indandiones – Conformational effects

Synthesis, characterization and spectroscopic properties of some 2-substituted 1,3-indandiones and their metal complexes

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