scholarly journals Studies on the solvatochromic effect and NLO response in new symmetric bimetallic Rhenium compounds

Polyhedron ◽  
2020 ◽  
Vol 187 ◽  
pp. 114679
Author(s):  
Iván González ◽  
Diego Cortés-Arriagada ◽  
Paulina Dreyse ◽  
Luis Sanhueza ◽  
Irma Crivelli ◽  
...  
Keyword(s):  
Nlo Response ◽  
Solvatochromic Effect

Competing hydrogen-bonding interactions in a high-Tc organic molecular-ionic crystal with evident nonlinear optical response

CrystEngComm ◽  
2021 ◽  
Vol 23 (13) ◽  
pp. 2509-2512
Author(s):  
Wen-Tao Xu ◽  
Jun-Chao Liu ◽  
Yu-Ling Zeng ◽  
Hua Zhang ◽  
Zhong-Xia Wang
Keyword(s):  
Phase Transition ◽  
Hydrogen Bonding ◽  
Ionic Crystal ◽  
Nonlinear Optical ◽  
Optical Response ◽  
Nonlinear Optical Response ◽  
High Tc ◽  
Hydrogen Bonding Interactions ◽  
Nlo Response

An organic molecular-ionic crystal of (TPPO–H)2SO4 exhibits moderate NLO response which is twice that of KDP and competing hydrogen-bonding interactions triggered high-Tc phase transition.

Second-order NLO response in chiral ferroelectric liquid crystals: Molecular and bulk consideration

2021 ◽  
pp. 115328
Author(s):  
Stijn van Cleuvenbergen ◽  
Griet Depotter ◽  
Koen Clays ◽  
Przemysław Kędziora
Keyword(s):  
Liquid Crystals ◽  
Second Order ◽  
Ferroelectric Liquid Crystals ◽  
Nlo Response

3,6-Di-tert-Butyl-2-Hydroxy-4-Pyridinylphenolate and Tin(IV) Complexes it Forms: Synthesis and Structure Details and Solvatochromic Effect

2020 ◽  
Vol 46 (12) ◽  
pp. 795-804
Author(s):  
A. V. Piskunov ◽  
K. I. Pashanova ◽  
K. A. Mart’yanov ◽  
K. V. Arsen’eva ◽  
A. V. Cherkasov
Keyword(s):  
Tert Butyl ◽  
Solvatochromic Effect

Impact of even number of alkaline earth metal doping on the NLO response of C20 nanocluster; a DFT outcome

2021 ◽  
pp. 113386
Author(s):  
Naveen Kosar ◽  
Hira Tahir ◽  
Khurshid Ayub ◽  
Mazhar Amjad Gilani ◽  
Muhammad Arshad ◽  
...  
Keyword(s):  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Metal Doping ◽  
Nlo Response

DFT study of effect of substituents on second-order NLO response of novel BODIPY dyes

2021 ◽  
Vol 140 (5) ◽  
Author(s):  
Huimin Kang ◽  
Jinting Ye ◽  
Hongqiang Wang ◽  
Yuan Zhang ◽  
Yongqing Qiu
Keyword(s):  
Second Order ◽  
Dft Study ◽  
Effect Of Substituents ◽  
Nlo Response

Nonlinear optical properties of colloidal carbon nanoparticles: nanodiamonds and carbon dots

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris
Keyword(s):  
Optical Properties ◽  
Carbon Dots ◽  
Carbon Nanoparticles ◽  
Nonlinear Optical ◽  
Laser Excitation ◽  
Optical Limiting ◽  
Nonlinear Optical Properties ◽  
Nlo Response ◽  
Colloidal Carbon ◽  
532 Nm

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.

A multitechnique investigation of the second order NLO response of a 10,20-diphenylporphyrinato nickel(II) complex carrying a phenylethynyl based push-pull system in the 5- and 15-positions

2004 ◽  
Vol 08 (11) ◽  
pp. 1311-1324 ◽  
Author(s):  
Maddalena Pizzotti ◽  
Elisabetta Annoni ◽  
Renato Ugo ◽  
Silvia Bruni ◽  
Silvio Quici ◽  
...  
Keyword(s):  
Ab Initio ◽  
Planar Structure ◽  
Third Order ◽  
Incident Wavelength ◽  
Pull System ◽  
Nlo Response ◽  
Self Consistent ◽  
Order Of Magnitude ◽  
Zero Frequency

A multitechnique investigation of the determination of the order of magnitude of the second and third order NLO response of [5-[(4-dimethylaminophenyl)ethynyl]-15-[(4-nitrophenyl)ethynyl]-10,20-diphenylporphyrinato]nickel(II) (1) is reported with the aim to produce self consistent evidence for a significant NLO response of this kind of push-pull porphyrin chromophore. The experimental multitechnique approach is based on the EFISH technique, working with a non-resonant incident wavelength of 1.907 μm, on the solvatochromic method and finally on a vibrational method, avoiding any fluorescence or resonance interference. A theoretical MNDO-TDHF evaluation of the zero-frequency quadratic and cubic hyperpolarizabilities of an ab initio optimized planar structure is also reported. The order of magnitude of the quadratic hyperpolarizability of (1) at zero frequency (β0), was found to be significantly lower than that reported for the corresponding Cu (II) or Zn (II) complexes with the same push-pull porphyrin chromophore.

scholarly journals Tuning of Hyperpolarizability, One- and Two-Photon Absorption of D-A and D-A-A Type Intramolecular Charge Transfer Based Sensors

2019 ◽  
Author(s):  
Pralok K. Samanta ◽  
Md Mehboob Alam ◽  
Ramprasad Misra ◽  
Swapan K. Pati
Keyword(s):  
Charge Transfer ◽  
Gas Phase ◽  
Density Functional ◽  
Intramolecular Charge Transfer ◽  
Photon Absorption ◽  
First Hyperpolarizability ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Nlo Response ◽  
Donor Acceptor

Solvents play an important role in shaping the intramolecular charge transfer (ICT) properties of π-conjugated molecules, which in turn can affect their one-photon absorption (OPA) and two-photon absorption (TPA) as well as the static (hyper)polarizabilities. Here, we study the effect of solvent and donor-acceptor arrangement on linear and nonlinear optical (NLO) response properties of two novel ICT-based fluorescent sensors, one consisting of hemicyanine and dimethylaniline as electron withdrawing and donating groups (molecule 1), respectively and its boron-dipyrromethene (BODIPY, molecule 2)-fused counterpart (molecule 3). Density functional theoretical (DFT) calculations using long-range corrected CAM-B3LYP and M06-2X functionals, suitable for studying properties of ICT molecules, are employed to calculate the desired properties. The dipole moment (µ) as well as the total first hyperpolarizability (β<sub>total</sub>) of the studied molecules in the gas phase is dominantly dictated by the component in the direction of charge transfer. The ratios of vector component of first hyperpolarizability (β<sub>vec</sub>) to β<sub>total</sub> also reveal unidirectional charge transfer process. The properties of the medium significantly affect the OPA, hyperpolarizability and TPA properties of the studied molecules. Time dependent DFT (TDDFT) calculations suggest interchanging between two lowest excited states of molecule 3 from the gas phase to salvation. The direction of charge polarization and dominant transitions among molecular orbitals involved in the OPA and TPA processes are studied. The results presented are expected to be useful in tuning the NLO response of many ICT-based chromophores, especially those with BODIPY acceptors.<br>

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