Rational design of cyclopenta[b]naphthalenes for better optoelectronic applications and their photophysical properties using DFT/TD-DFT methods

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 44569-44577 ◽  
Author(s):  
Rajangam Jagadeesan ◽  
Gunasekaran Velmurugan ◽  
Ponnambalam Venuvanalingam
Keyword(s):  
Optical Properties ◽  
Dft Calculations ◽  
Rational Design ◽  
Photophysical Properties ◽  
Dft Methods ◽  
Td Dft ◽  
Optoelectronic Applications

The optical properties of cyclopenta[b]naphthalenes (CPNs) can be fine-tuned by suitable substitutions and DFT calculations show that they can make efficient OLEDs.

Theoretical Framework of 1,3-Thiazolium-5-Thiolates Mesoionic Compounds: Exploring the Nature of Photophysical Properties and Molecular Nonlinearity

2020 ◽  
Author(s):  
Zeyu Liu ◽  
Shugui Hua ◽  
Tian Lu ◽  
Ziqi Tian
Keyword(s):  
Optical Properties ◽  
Rational Design ◽  
Rayleigh Scattering ◽  
Function Analysis ◽  
Theoretical Calculations ◽  
Photophysical Properties ◽  
Optical Nonlinearity ◽  
Nonlinear Properties ◽  
Photoelectric Performance ◽  
Wave Function Analysis

Inspired by a previous experimental study on the first-order hyperpolarizabilities of 1,3-thiazolium-5-thiolates mesoionic compounds using Hyper-Rayleigh scattering technique, we theoretically investigated the UV-Vis absorption spectra and every order polarizabilities of these mesoionic molecules. Based on the fact that the photophysical and nonlinear properties observed in the experiment can be perfectly replicated, our theoretical calculations explored the essential characteristics of the optical properties of the mesoionic compounds with different electron-donating groups at the level of electronic structures through various wave function analysis methods. The influence of the electron-donating ability of the donor on the optical properties of the molecules and the contribution of the mesoionic ring moiety to their optical nonlinearity are clarified, which have not been reported by any research so far. This work will help people understand the nature of optical properties of mesoionic-based molecules and provide guidance for the rational design of molecules with excellent photoelectric performance in the future.

TD-DFT calculations of the excited states of metalloporphyrins relevant to organic solar photovoltaic cells

2014 ◽  
Vol 18 (06) ◽  
pp. 475-492 ◽  
Author(s):  
Neha Agnihotri ◽  
Ronald P. Steer
Keyword(s):  
Dft Calculations ◽  
Electronic State ◽  
Excited States ◽  
Photovoltaic Cells ◽  
Oscillator Strengths ◽  
Solar Photovoltaic ◽  
Dft Methods ◽  
Radiative Transitions ◽  
Td Dft ◽  
Triplet Excited States

The molecular orbital energies and symmetries, electronic state energies and symmetries, and orbital compositions and oscillator strengths for one-photon radiative transitions up to an energy of 4 eV have been calculated by DFT and TD-DFT methods for 15 d0 and d10 metalloporphyrins. Data for both singlet and triplet excited states are reported and used to identify potential candidates for use as photon upconverters by homomolecular triplet–triplet annihilation.

Synthesis and photophysical properties of extended π conjugated naphthalimides

2017 ◽  
Vol 16 (4) ◽  
pp. 539-546 ◽  
Author(s):  
C. Rémy ◽  
C. Allain ◽  
I. Leray
Keyword(s):  
Charge Transfer ◽  
Dft Calculations ◽  
Photophysical Properties ◽  
Photoinduced Charge Transfer ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Td Dft ◽  
Photoinduced Charge

A series of π conjugated naphthalimide derivatives were prepared. Compounds display efficient photoinduced charge transfer in solution which was rationalized by time-resolved spectroscopy and modelled by TD-DFT calculations.

Optical and nonlinear optical properties of Ln(Tp)2, where Ln = La,…,Lu and Tp = tris(pyrazolyl)borate: a DFT+TD-DFT study

2019 ◽  
Vol 43 (36) ◽  
pp. 14377-14389 ◽  
Author(s):  
Douniazed Hannachi ◽  
Mohamed Fahim Haroun ◽  
Ahlem Khireddine ◽  
Henry Chermette
Keyword(s):  
Optical Properties ◽  
Thermodynamic Properties ◽  
Dft Calculations ◽  
Rare Earths ◽  
Magnetic Moment ◽  
Nonlinear Optical ◽  
Dft Study ◽  
Dynamic Polarizability ◽  
Td Dft ◽  
Borate Complexes

DFT calculations of electronic, structural, thermodynamic properties, magnetic moment, static and dynamic polarizability and hyperpolarizability of Ln(Tp)2 (Ln = rare earths, Tp = ring-unsubstituted tris(pyrazolyl)borate) complexes.

Tuning Excited States of Bipyridyl Platinum(II) Chromophores with π-Bonded Catecholate Organometallic Ligands: Synthesis, Structures, TD-DFT Calculations, and Photophysical Properties

2014 ◽  
Vol 53 (13) ◽  
pp. 6624-6633 ◽  
Author(s):  
Jamal Moussa ◽  
Lise-Marie Chamoreau ◽  
Alessandra Degli Esposti ◽  
Maria Pia Gullo ◽  
Andrea Barbieri ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Excited States ◽  
Photophysical Properties ◽  
Td Dft

Synthesis, crystal structure, DFT/TDDFT calculation, photophysical properties and DNA binding studies of morpholino moiety ligand based two Cu(ii) complexes in combination with carboxylates

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60487-60501 ◽  
Author(s):  
Aparup Paul ◽  
Soumen Mistri ◽  
Apurba Bhunia ◽  
Soumen Manna ◽  
Horst Puschmann ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dna Binding ◽  
Dft Calculations ◽  
Photophysical Properties ◽  
Binding Constants ◽  
Binding Studies ◽  
Td Dft ◽  
Dna Binding Studies ◽  
Ct Dna

Two Cu(II) compounds have been characterized by structure analyses and DFT/TD-DFT calculations. Both the complexes potentially bind with CT-DNA and corresponding binding constants are in the order of 105 M−1.

MCD spectroscopy and TD-DFT calculations of a naphthalene-ring-bridged coplanar binuclear phthalocyanine dimer

2013 ◽  
Vol 17 (06n07) ◽  
pp. 489-500 ◽  
Author(s):  
John Mack ◽  
Xu Liang ◽  
Tatiana V. Dubinina ◽  
Larisa G. Tomilova ◽  
Tebello Nyokong ◽  
...  
Keyword(s):  
Experimental Data ◽  
Optical Properties ◽  
Electronic Structure ◽  
Dft Calculations ◽  
Singlet Oxygen ◽  
Magnetic Circular Dichroism ◽  
Basis Sets ◽  
Naphthalene Ring ◽  
B3lyp Functional ◽  
Td Dft

Magnetic circular dichroism (MCD) spectroscopy and TD-DFT calculations are used to analyze the electronic structure and optical properties of an alkyl-substituted naphthalene-ring-bridged coplanar binuclear phthalocyanine dimer. An analysis of the MCD spectrum of the naphthalene-ring-bridged dimer relative to those of benzene-bridged compounds reported previously, demonstrates that there is a significantly weaker interaction between the two phthalocyanine rings. TD-DFT results obtained using the B3LYP functional with 6–31G basis sets were found to be problematic. Closer agreement with the experimental data is obtained when the CAM-B3LYP functional is used instead. The naphthalene-ring-bridged compound is found to be unsuitable for use as a photosensitizer for the formation of singlet oxygen, because the ΦT values are negligible.

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