Dr Vennapusa Sivaranjana Reddy
Assistant Professor Grade I (Chemistry)
  +91 (0)471 - 2778057
  siva@iisertvm.ac.in

Publications from IISERTVM:

2021

38. Gayathri, Parthasarathy; Kanagajothi, Karuppaiah ; Nag, Probal; Anand, Neethu ; Sivaranjana Reddy, Vennapusa; Moon, Dohyun; Anthony, Savarimuthu; Madhu, Vedichi*
Symmetrical and unsymmetrical thiazole based ESIPT derivatives: Highly selective fluorescence sensing of Cu2+ and structure controlled reversible mechanofluorochromism
 Cryst. Eng. Comm (Accepted)

37. Chithra M. J., Probal Nag, and Sivaranjana Reddy Vennapusa*
Surface hopping dynamics reveal ultrafast triplet generation promoted by S1-T2-T1 spin-vibronic coupling in 2-mercaptobenzothiazole
Phys. Chem. Chem. Phys 23, 20183

36. Probal Nag, Neethu Anand and Sivaranjana Reddy Vennapusa*
Ultrafast nonadiabatic excited-state intramolecular proton transfer in 3-hydroxychromone: A surface hopping approach
J. Chem. Phys 155, 094301(1-8)

35. Tamilarasu M., Chinraj. S, Chithra M. J., Rajat Singh, Sivaranjana Reddy Vennapusa, Alagiri Kaliyamoorthy*
Palladium-Catalyzed Direct C2-Biarylation of Indoles
J. Org. Chem, 81 (15) 10838-10851

34. Akhil Chakravarthy Kakarlamudi and Sivaranjana Reddy Vennapusa*
Intersystem crossing pathways in [5]-, [7]- and [9]cycloparaphenylenes
J. Chem. Phys. 155, 044301 (1-12) 

33. Debojyoti Mukherjee, Probal Nag, Albert Shteinman, Sivaranjana Reddy Vennapusa, Ujjwal Mandal and Mitra Mainak*
Catechol oxidation promoted by bridging phenoxo moieties in a bis(µ-phenoxo)bridged dicopper(II) complex
RSC Adv. 11, 22951-22959.

32. Aman Rastogi, Probal Nag  and Sivaranjana Reddy Vennapusa*
Tracking the early nonadiabatic events of ESIPT process in 2-acetylindan-1,3-dione by quantum wavepacket dynamics
J. Photochem. Photobiol. A. 418,113415(1-9).

31. Lekshmi R. S and Sivaranjana Reddy Vennapusa*
Formation and decay of intersystem crossing receiver triplet state in terthiophene and quaterthiophene
Int. J. Quantum. Chem., 121(15), e26677.

30. A. Kalaiselvan, A. Spergen, S. V. K. Isukapalli, V. S. Reddy and S. Gokulnath*
Double Intramolecular Hydrogen Transfer Assisted Dual Emission in Carbazole-embedded Porphyrin-like Macrocycle
Chem. Comm. 57, 4420-4423.

29. Anshu Dandia, Pratibha Saini,  M. J. Chithra, Sivaranjana Reddy Vennapusa, Vijay Parewa*,
Catalyst- and acid-free Markovnikov hydration of alkynes in a sustainable H2O/ethyl lactate system"
J. Mol. Liq. 331, 115758(1-8).

28. Chitra M. J, Vamsi Krishna Isukapalli, Sivaranjana Reddy Vennapusa*
Spin-vibronic coupling induced intersystem crossing in tetraphenylporphyrin : Relevance in the photosensitization of prolycopene"
J. Photochem. Photobiol. A. 412, 113223 (1-10).

27. Ajay. J, Sulfikarali Thondikkal, Akhil Chakravarthy Kakarlamudi, Sivaranjana Reddy Vennapusa and Gokulnath Sabapathi*,
Hexathianonaphyrin(1.0.0.1.0.0.1.0.0): Synthesis, Optical, Redox and Protonation Induced Antiaromaticity"
J.Porphyr. Phthalocyanines, 25, 484-492.

 

2020

26. Probal Nag and Sivaranjana Reddy Vennapusa*,
Role of Skeletal and O-H Vibrational Motions in the Ultrafast Excited-State Relaxation Dynamics of Alizarin"

J. Phys. Chem, A 124, 52, 10989-10996.

 

25. Sai Vamsi Krishna Isukapalli, Lekshmi R S, Pralok Kumar Samanta and Sivaranjana Reddy Vennapusa*,
“Formation of excited triplet states in naphthalene diimide and perylene diimide derivatives: A detailed theoretical study

J. Chem. Phys., 153, 124301(1-13).

 

24. Probal Nag and Sivaranjana Reddy Vennapusa*,
“Multiple ESIPT pathways originating from three-state conical intersections in tropolone”

J. Chem. Phys, 2020, 153, 084306(1-13).

 

23.  Arumugam Kalaiselvan, Isukapalli Sai Vamsi Krishna, Anjana Prasad Nambiar, Aathira Edwin, Vennapusa Sivaranjana Reddy, and Sabapathi Gokulnath*,
Carbazole-Based Porphyrins: Synthesis, Structure-Photophysical Property Correlations and Mercury Ion Sensing
Org. Lett. 2020, 22, (11) 4494-4499.

 

22.  Neethu Anand, Probal Nag, Ravi kumar Kanaparthi* and Sivaranjana Reddy Vennapusa*,
“O-H vibrations promote sub-50 fs nonadibatic dynamics in 3-hydroxypyran-4-one: Interplay between internal conversion and ESIPT”

Phys. Chem. Chem. Phys.2020, 22, 8745-8756.

 

21. Lekshmi  R. S., Gayathri B Kurup and Sivaranjana Reddy Vennapusa*,
Identification of receiver triplet state in the ultrafast intersystem crossing of carbonylpyrenes
Phys. Chem. Chem. Phys, 2020, 22, 6145-6153

 

20. Neethu Anand, Sai Vamsi Krishna Isukapalli and Sivaranjana Reddy Vennapusa*,
“Excited-state intramolecular proton transfer driven by conical intersection in hydroxychromones”

J. Comput. Chem., 2020, 41(11),1068-1080

 

2019

19. Neethu Anand, Kai Welke, Stephan Irle, and Sivaranjana Reddy Vennapusa*,
Nonadiabatic Excited-­state intramolecular proton transfer in 3-­hydroxyflavone: S2 State involvement via multi­mode effect
J. Chem. Phys, 2019, 151,214304 

 

18. Sai Vamsi Krishna Isukapalli and Vennapusa Sivaranjana Reddy*,   "Ultrafast intersystem crossing in naphthalene diimides: Involvement of higher triplet states"  J. Indian Chem. Soc. 96, 863-868 (Invited article).


2017

17. Vennapusa Sivaranjana Reddy* and Stepahn Irle,
“Indirect intersystem crossing (S1→T3/T2→T1) promoted by the Jahn-Teller effect in cycloparaphenylenes”
J. Chem. Theory Comput., 2017, 13 (10), pp 4944-4949)

16. Prabu Mani, Anupam Anand Ojha, Vennapusa Sivaranjana Reddy and Sukhendu Mandal*,
“Turn-on" Fluorescence Sensing and Discriminative Detection of Aliphatic Amines Using a 5-Fold-Interpenenetrated Coordination Polymer", Inorg. Chem. 56, 6772-6775 (2017)


2016

15. Shinaj Rajagopal, Vennapusa Sivaranjana Reddy, and Mahesh Hariharan* (2016),
“Crystallization Induced Green-Yellow-Orange Emitters Based on Benzoylpyrenes”
CrystEngComm, 18, 5089-5094 (2016)

14. Kalaivanan Nagarajan, Ajith R. Mallia, Vennapusa Sivaranjana Reddy, and Mahesh Hariharan*,
“Access to Triplet Excited State in Core-Twisted Perylenediimide", J. Phys. Chem. C,  120, 8443-8450 (2016).



Previous Publications:

13. V. Sivaranjana Reddy, S. Nagaprasad Reddy and S. Mahapatra (2015),
“Ultrafast internal conversion dynamics of electronically excited diborane radical cation”
Theo. Chem. Acc. 134, 39

12. V. Sivaranjana Reddy, C. Camacho, J. Xia, R. Jasti, and S. Irle (2014),
“Quantum dynamics simulations reveal vibronic effects on the optical properties of [n]cycloparaphenylenes” J. Chem. Theory Comput. 10, 4025

11. E. V. Gromov*, V. Sivaranjana Reddy, F. Gatti and H. Koeppel  (2013),
“Reaction surface approach to multimode vibronic coupling problems: General framework and application to furan” J. Chem. Phys. 139, 234306

10. S. Faraji, M. Vazdar, V. Sivaranjana Reddy, M. Eckert Maksic, H. Lischka and H. Koeppel (2011),
“Ab initio quantum dynamical study of the multi-state nonadiabatic photodissociation of pyrrole”,
J. Chem. Phys. 135, 154310.

9. S. Ghanta, V. Sivaranjana Reddy and S. Mahapatra (2011),
“Theoretical study of electronically excited radical cations of naphthalene and anthracene as archetypal models for astrophysical observations. II. Dynamical consequences”
Phys. Chem. Chem. Phys., 13, 14531.

8. S. Ghanta, V. Sivaranjana Reddy and S. Mahapatra (2011),
“Theoretical study of electronically excited radical cations of naphthalene and anthracene as archetypal models for astrophysical observations. I. Static aspects” Phys. Chem. Chem. Phys., 13, 14523.

7. R. R. Kumar, V. Sivaranjana Reddy and S. Mahapatra (2010),
“(B+Exb)xe Jahn-Teller and pseudo-Jahn-Teller effects in spiropentane radical cation ”
Chem. Phys. 373, 228

6. V. Sivaranjana Reddy, S. Ghanta and S. Mahapatra (2010),
“First principles quantum dynamical investigation provides evidence for the role of polycyclic aromatic hydrocarbon radical cations in interstellar space”, Phys. Rev. Lett. 104, 111102.

5. V. Sivaranjana Reddy and S. Mahapatra (2009),
“Electronic nonadiabatic interactions and ultrafast internal conversion in phenylacetylene radical cation” J. Chem. Phys. 130, 124303.

4. V. Sivaranjana Reddy and S. Mahapatra (2008),
“Photostability of electronically excited polyacenes: a case study of vibronic coupling in the naphthalene radical cation” J. Chem. Phys. 128, 091104.

3. V. Sivaranjana Reddy, T. S. Venkatesan and S. Mahapatra (2007),
“Vibronic interactions in the photodetachment spectroscopy of phenide anion”, J. Chem. Phys. 126, 074306.


Book Chapters
2. T. S. Venkatesan, R. R. Kumar, V. Sivaranjana Reddy and S. Mahapatra, (2010)
“Vibronic dynamics of organic hydrocarbons and radicals in: Atomic structure and collision processes” Eds Man Mohan Narosa publishers, New Delhi, pg 189196.

1. V. Sivaranjana Reddy and S. Mahapatra (2009),
“On the vibronic interactions in radicaland radical cations of aromatic hydrocarbons, in: The Jahn-Teller Effect:Advances and Perspectives ” Eds Koeppel, H., Barentzen, and D. R. Yarkony, Springer Verlag GmBH, Heidelberg, 97, 277309.