Siva Umapathy: search on Z-Library

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1

Spectroscopic and Computational Insights into the Ion-Solvent Interactions in Hydrated Aprotic and Protic Ionic Liquids

KUNDU, KAUSHIK, Chandra, Goutam, Umapathy, Siva, Kiefer, Johannes

Journal:

Physical Chemistry Chemical Physics

Year:

2019

Language:

english

File:

PDF, 3.88 MB

english, 2019

2

Effect of SDS on human hair: Study on the molecular structure and morphology

Bhawana Singh, Siva Umapathy

Journal:

Journal of Biophotonics

Year:

2011

Language:

english

File:

PDF, 440 KB

english, 2011

3

Fluorescence quenching of biologically active carboxamide by aniline and carbon tetrachloride in different solvents using Stern–Volmer plots

N.R. Patil, R.M. Melavanki, S.B. Kapatkar, K. Chandrashekhar, H.D. Patil, Siva Umapathy

Journal:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy

Year:

2011

Language:

english

File:

PDF, 1.17 MB

english, 2011

4

Raman and infra-red microspectroscopy: towards quantitative evaluation for clinical research by ratiometric analysis

Kumar, Srividya, Verma, Taru, Mukherjee, Ria, Ariese, Freek, Somasundaram, Kumaravel, Umapathy, Siva

Journal:

Chemical Society Reviews

Year:

2016

Language:

english

File:

PDF, 4.27 MB

english, 2016

5

Luminescent sensor for Copper(II) Ion Based on Imine Functionalized Monometallic Rhenium(I) Complexes

Ramdass, Arumugam, Sathish, Veerasamy, Velayudham, Murugesan, Thanasekaran, Pounraj, Umapathy, Siva, Rajagopal, Seenivasan

Journal:

Sensors and Actuators B: Chemical

Year:

2016

Language:

english

File:

PDF, 1.40 MB

english, 2016

6

Thermal Effect of Sulfur Doping for Luminescent Graphene Quantum Dots

Kharangarh, Poonam R., Umapathy, Siva, Singh, Gurmeet

Journal:

ECS Journal of Solid State Science and Technology

Year:

2018

Language:

english

File:

PDF, 969 KB

english, 2018

7

Understanding the effects of culture conditions in bacterial growth: A biochemical perspective using Raman microscopy

Mukherjee, Ria, Verma, Taru, Nandi, Dipankar, Umapathy, Siva

Journal:

Journal of Biophotonics

Year:

2019

Language:

english

File:

PDF, 732 KB

english, 2019

8

Direct Detection of Bacteria Using Positively-charged Ag/Au Bimetallic Nanoparticles: A Label-Free SERS Study Coupled with Multivariate Analysis

Prakash, Om, Sil, Sanchita, Verma, Taru, Umapathy, Siva

Journal:

The Journal of Physical Chemistry C

Year:

2019

Language:

english

File:

PDF, 4.31 MB

english, 2019

9

Direct Detection of Bacteria Using Positively-charged Ag/Au Bimetallic Nanoparticles: A Label-Free SERS Study Coupled with Multivariate Analysis

Prakash, Om, Sil, Sanchita, Verma, Taru, Umapathy, Siva

Journal:

The Journal of Physical Chemistry C

Year:

2019

File:

PDF, 4.31 MB

2019

10

Enriched Photophysical Properties and Thermal Stability of Tin(II) Substituted Lead-Based Perovskite Nanocrystals with Mixed OrganicâInorganic Cations

Selvarajan, Premkumar, Kundu, Kaushik, Sathish, C. I., Umapathy, Siva, Vinu, Ajayan

Journal:

The Journal of Physical Chemistry C

Year:

2020

File:

PDF, 6.94 MB

2020

11

Quantum chemical computations, fluorescence spectral features and molecular docking of two biologically active heterocyclic class of compounds

Melavanki, Raveendra, Sharma, Kalpana, Muttannavar, V.T., Kusanur, Raviraj, Katagi, Kariyappa, Patra, Swarna M, Umapathy, Siva, Sadasivuni, Kishor Kumar, Shelar, Vikas M, Singh, Diksha, Patil, NR, Kop

Journal:

Journal of Photochemistry and Photobiology A: Chemistry

Year:

2020

File:

PDF, 5.19 MB

2020

12

Ultrafast Raman loss spectroscopy

Siva Umapathy, Adithya Lakshmanna, Babita Mallick

Journal:

Journal of Raman Spectroscopy

Year:

2009

Language:

english

File:

PDF, 131 KB

english, 2009

13

Manifestation of conical intersections in resonance Raman intensities

Praveen D. Chowdary, Siva Umapathy

Journal:

Journal of Raman Spectroscopy

Year:

2010

Language:

english

File:

PDF, 313 KB

english, 2010

14

Ultrafast Raman loss spectroscopy (URLS): instrumentation and principle

Babita Mallick, Adithya Lakhsmanna, Siva Umapathy

Journal:

Journal of Raman Spectroscopy

Year:

2011

Language:

english

File:

PDF, 355 KB

english, 2011

15

Study of solvent effects on the molecular structure and the reorganization energies of 4-nitro-4′-dimethylaminoazobenzene using resonance Raman intensities

Nandita Biswas, Siva Umapathy

Journal:

Journal of Raman Spectroscopy

Year:

2001

Language:

english

File:

PDF, 223 KB

english, 2001

16

Dynamic structure of charge carrier in polyaniline by near-infrared excited resonance Raman spectroscopy

Christian Engert, Siva Umapathy, Wolfgang Kiefer, Hiro-o Hamaguchi

Journal:

Chemical Physics Letters

Year:

1994

Language:

english

File:

PDF, 510 KB

english, 1994

17

OTTLE cell study of the UV-visible and FTIR spectroelectrochemistry of the radical anion and dianion of 1,4-benzoquinone in DMSO solutions

Ranjith S.K.A. Gamage, Siva Umapathy, A.James McQuillan

Journal:

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry

Year:

1990

Language:

english

File:

PDF, 483 KB

english, 1990

18

Solvent effect on the spectroscopic properties of 6MAMC and 7MAMC

Raveendra M. Melavanki, N.R. Patil, S.B. Kapatkar, N.H. Ayachit, Siva Umapathy, J. Thipperudrappa, A.R. Nataraju

Journal:

Journal of Molecular Liquids

Year:

2011

Language:

english

File:

PDF, 540 KB

english, 2011

19

Time resolved resonance Raman studies on triplet excited state of 2-methoxy-naphthalene by photo-sensitization

Himansu Mohapatra, Siva Umapathy

Journal:

Chemical Physics Letters

Year:

2004

Language:

english

File:

PDF, 336 KB

english, 2004

20

Structure of the triplet excited state of tetrabromo-p-benzoquinone from time-resolved resonance Raman spectra and ab initio calculations

Mrinalini Puranik, Jayaraman Chandrasekhar, Siva Umapathy

Journal:

Chemical Physics Letters

Year:

2001

Language:

english

File:

PDF, 253 KB

english, 2001

21

Partitioning of the total reorganization energy into its vibrational and solvent (inertial and reorientational) contributions using resonance Raman intensities

Nandita Biswas, Siva Umapathy

Journal:

Chemical Physics Letters

Year:

1998

Language:

english

File:

PDF, 321 KB

english, 1998

22

Resonance de-enhancement in the 21Agstate oftrans-azobenzene

Nandita Biswas, Siva Umapathy

Journal:

Year:

1997

Language:

english

File:

PDF, 820 KB

english, 1997

23

Solvatochromic Effect on the Photophysical Properties of Two Coumarins

Raveendra M. Melavanki, H. D. Patil, Siva Umapathy, J. S. Kadadevarmath

Journal:

Journal of Fluorescence

Year:

2012

Language:

english

File:

PDF, 443 KB

english, 2012

24

Fourier transform infrared microspectroscopy identifies protein propionylation in histone deacetylase inhibitor treated glioma cells

Bhawana Singh, Sivaraman Boopathy, Kumaravel Somasundaram, Siva Umapathy

Journal:

Journal of Biophotonics

Year:

2012

Language:

english

File:

PDF, 1.27 MB

english, 2012

25

Solvent effect on the fluorescence quenching of biologically active carboxamide by aniline and carbon tetrachloride in different solvents using S–V plots

N.R. Patil, R.M. Melavanki, S.B. Kapatkar, K. Chandrasekhar, N.H. Ayachit, Siva Umapathy

Journal:

Journal of Luminescence

Year:

2012

Language:

english

File:

PDF, 1.13 MB

english, 2012

26

Simple Approach to Determining Absolute Raman Cross Sections Using an Optical Parametric Oscillator

Biswas, Nandita, Umapathy, Siva

Journal:

Applied Spectroscopy

Year:

1998

Language:

english

File:

PDF, 153 KB

english, 1998

27

Time-Resolved Resonance Raman Spectroscopy: Exploring Reactive Intermediates

Sahoo, Sangram Keshari, Umapathy, Siva, Parker, Anthony W.

Journal:

Applied Spectroscopy

Year:

2011

Language:

english

File:

PDF, 4.15 MB

english, 2011

28

Effect of chlorine substitution on triplet state structure of thioxanthone: A time-resolved resonance Raman study

Pandey, Rishikesh, Rajkumar, Nagappan, Umapathy, Siva

Journal:

Journal of Raman Spectroscopy

Year:

2013

Language:

english

File:

PDF, 823 KB

english, 2013

29

Density Functional Calculations of Structures, Vibrational Frequencies, and Normal Modes of trans - and cis -Azobenzene

Biswas, Nandita, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

1997

Language:

english

File:

PDF, 337 KB

english, 1997

30

Solvent-Controlled Acceleration of Electron Transfer in Binary Mixtures

Pugžlys, Audrius, den Hartog, Harald P., Baltuška, Andrius, Pshenichnikov, Maxim S., Umapathy, Siva, Wiersma, Douwe A.

Journal:

Journal of Physical Chemistry A

Year:

2001

Language:

english

File:

PDF, 85 KB

english, 2001

31

Density-Functional Studies on the Structure and Vibrational Spectra of Transient Intermediates of p -Benzoquinone

Mohandas, Pothukattil, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

1997

Language:

english

File:

PDF, 222 KB

english, 1997

32

AIP Conference Proceedings [AIP PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS AND MATERIAL SCIENCE: RAM 2013 - Bikaner, Rajasthan, India (1–2 February 2013)] - Electrical properties of Au/n-InP and Au/PVA/n-InP Schottky structures

Umapathi, A., Reddy, M. Siva Pratap, Reddy, K. Ravindranatha, Reddy, V. Rajagopal

Year:

2013

Language:

english

File:

PDF, 761 KB

english, 2013

33

Solvent-induced changes on the polarity of the triplet excited state of 2-chlorothioxanthone: From time-resolved absorption and resonance Raman spectroscopies

Pandey, Rishikesh, Umapathy, Siva

Journal:

Chemical Physics

Year:

2014

Language:

english

File:

PDF, 1.04 MB

english, 2014

34

Structures, Vibrational Frequencies, and Normal Modes of Substituted Azo Dyes: Infrared, Raman, and Density Functional Calculations

Biswas, Nandita, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2000

Language:

english

File:

PDF, 122 KB

english, 2000

35

Density Functional Theoretical Modeling, Electrostatic Surface Potential and Surface Enhanced Raman Spectroscopic Studies on Biosynthesized Silver Nanoparticles: Observation of 400 pM Sensitivity to Explosives

Sil, Sanchita, Chaturvedi, Deepika, Krishnappa, Keerthi B., Kumar, Srividya, Asthana, S. N., Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2014

Language:

english

File:

PDF, 636 KB

english, 2014

36

Time-Resolved Resonance Raman Spectroscopic Studies on the Radical Anions of Methyl-1,4-benzoquinone and 2,6-Dimethyl-1,4-benzoquinone

Mohapatra, Himansu, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2002

Language:

english

File:

PDF, 70 KB

english, 2002

37

Simultaneous Detection of Two Triplets: A Time-Resolved Resonance Raman Study

Pandey, Rishikesh, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2012

Language:

english

File:

PDF, 2.20 MB

english, 2012

38

UV-Visible Spectrooelectrochemistry of the Reduction Products of Anthraquinone in Dimethylformamide Solutions: An Advanced Undergraduate Experiment

Babaei, Ali, Connor, Paul A., McQuillan, A. James, Umapathy, Siva

Journal:

Journal of Chemical Education

Year:

1997

Language:

english

File:

PDF, 111 KB

english, 1997

39

Time-Resolved Resonance Raman Spectroscopic Studies on the Triplet Excited State of Thioxanthone

Pandey, Rishikesh, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2011

Language:

english

File:

PDF, 1.98 MB

english, 2011

40

Influence of Solvent on Photoinduced Electron-Transfer Reaction: Time-Resolved Resonance Raman Study

Mohapatra, Himansu, Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2009

Language:

english

File:

PDF, 336 KB

english, 2009

41

Is Chemically Synthesized Graphene ‘Really’ a Unique Substrate for SERS and Fluorescence Quenching?

Sil, Sanchita, Kuhar, Nikki, Acharya, Somnath, Umapathy, Siva

Journal:

Scientific Reports

Year:

2013

Language:

english

File:

PDF, 798 KB

english, 2013

42

Time-Resolved Resonance Raman and Density Functional Studies on the Ground State and Short-Lived Intermediates of Tetrabromo- p -benzoquinone

Puranik, Mrinalini, Chandrasekhar, Jayaraman, Snijders, Jaap G., Umapathy, Siva

Journal:

Journal of Physical Chemistry A

Year:

2001

Language:

english

File:

PDF, 88 KB

english, 2001

43

Time-resolved resonance Raman spectroscopic investigations of the photochemistry of ubiquinone

Parker, Anthony W., Hester, Ronald E., Phillips, David, Umapathy, Siva

Journal:

Journal of the Chemical Society Faraday Transactions

Year:

1992

Language:

english

File:

PDF, 630 KB

english, 1992

44

Resonance Raman spectroscopic studies of surface-derivatized TiO2

Umapathy, Siva, Lee-Son, Gillian, Hester, Ronald E.

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1987

Language:

english

File:

PDF, 249 KB

english, 1987

45

Time-resolved resonance Raman spectroscopic studies on the triplet excited state of fluoranil

Balakrishnan, Gurusamy, Siva Umapathy, and

Journal:

Journal of the Chemical Society Faraday Transactions

Year:

1997

Language:

english

File:

PDF, 371 KB

english, 1997

46

Early time dynamics of trans-azobenzene isomerization in solution from resonance Raman intensity analysis

Biswas, Nandita, Umapathy, Siva

Journal:

The Journal of Chemical Physics

Year:

1997

Language:

english

File:

PDF, 436 KB

english, 1997

47

Structure of the triplet excited state of bromanil from time-resolved resonance Raman spectra and simulation

Puranik, Mrinalini, Umapathy, Siva, Snijders, Jaap G., Chandrasekhar, Jayaraman

Journal:

The Journal of Chemical Physics

Year:

2001

Language:

english

File:

PDF, 477 KB

english, 2001

48

Resonance Raman study of the solvent dynamics for ultrafast charge transfer transition in 4-nitro-4[sup ʹ]-dimethylamino-azobenzene

Biswas, Nandita, Umapathy, Siva

Journal:

The Journal of Chemical Physics

Year:

2003

Language:

english

File:

PDF, 397 KB

english, 2003

49

Loss and gain signals in broadband stimulated-Raman spectra: Theoretical analysis

Harbola, Upendra, Umapathy, Siva, Mukamel, Shaul

Journal:

Physical Review A

Year:

2013

Language:

english

File:

PDF, 353 KB

english, 2013

50

Energy funneling and macromolecular conformational dynamics: a 2D Raman correlation study of PEG melting

Samuel, Ashok Zachariah, Umapathy, Siva

Journal:

Polymer Journal

Year:

2014

Language:

english

File:

PDF, 1.76 MB

english, 2014