Infrared Spectra of the Thymidine <sup>13</sup> C2 and <sup>13</sup> C4 Isotopes in H <sub>2</sub> O and D <sub>2</sub> O

Here we report the synthesis of two new <sup>13</sup>C thymidine (T) isotopes labeled at two key positions in its structure, C2═O and C4═O, and the first IR spectra of each T isotope in H<sub>2</sub>O and in D<sub>2</sub>O. Our experimental isotope shifts and normal mode calculations indicate some structurally sensitive modes may be more localized than previously thought, making them regiosensitive probes of thymidine's chemical environment. These results provide new physical insight into the normal modes of thymidine, and will guide future studies to determine how these structurally and environmentally sensitive probe vibrations are impacted by the duplex environment.

Authors

Institutions

Publication Details

Journal
The Journal of Physical Chemistry Letters
Published
2026-02-04
DOI
https://doi.org/10.1021/acs.jpclett.5c03267
Primary Topic
Molecular spectroscopy and chirality
Type
article
Field-Weighted Citation Impact
0.00
Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Infrared Spectra of the Thymidine 13 C2 and 13 C4 Isotopes in H 2 O and D 2 O

Christoph Kreutz, C. Phillip Shelor, Allison L. Stelling, Lu Wang et al.
The Journal of Physical Chemistry Letters
Molecular spectroscopy and chirality
article

Infrared Spectra of the Thymidine 13 C2 and 13 C4 Isotopes in H 2 O and D 2 O

Christoph Kreutz, C. Phillip Shelor, Allison L. Stelling, Lu Wang, Stefan Hilber, Arya Mojahed Naghi, Zackery Ferneyhough, Haoche Peng, Pavel Matousek
article en

Abstract

Here we report the synthesis of two new <sup>13</sup>C thymidine (T) isotopes labeled at two key positions in its structure, C2═O and C4═O, and the first IR spectra of each T isotope in H<sub>2</sub>O and in D<sub>2</sub>O. Our experimental isotope shifts and normal mode calculations indicate some structurally sensitive modes may be more localized than previously thought, making them regiosensitive probes of thymidine's chemical environment. These results provide new physical insight into the normal modes of thymidine, and will guide future studies to determine how these structurally and environmentally sensitive probe vibrations are impacted by the duplex environment.

The Journal of Physical Chemistry LettersVol. 17(7)
Rutherford Appleton Laboratory (GB), The University of Texas at Dallas (US), The University of Texas at Arlington (US), Universität Innsbruck (AT), Wentworth Institute of Technology (US), Research Complex at Harwell (GB), Rutgers Sexual and Reproductive Health and Rights (NL), Quantitative BioSciences (US)
Life in Land
Openalex Percentile: Top 69%
Molecular spectroscopy and chirality
DOISourceOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.

Infrared Spectra of the Thymidine <sup>13</sup> C2 and <sup>13</sup> C4 Isotopes in H <sub>2</sub> O and D <sub>2</sub> O — Christoph Kreutz, C. Phillip Shelor, et al. · The Journal of Physical Chemistry Letters (2026) | TGRS Research Map | TGRS