rotamer

(redirected from rotamers)

ro·ta·mer

(rō'ta-mĕr),
An isomer differing from other conformation(s) only in rotational positioning of its parts, such as synperiplanar and synclinal forms.

ro·ta·mer

(rō'tă-mĕr)
An isomer differing from other conformation(s) only in rotational positioning of its parts, such as cis- and trans- forms.
References in periodicals archive ?
The side chains and rotamers were adjusted with knowledge-based potentials, simulated annealing with explicit solvent, and small equilibration simulations using YASARA's refinement protocol [15].
The isomers of lysine 113 in Air-AAR1-Like and lysine 132 in Air-CCAPR1-Like were adjusted using Dunbrack's list of rotamers (Dunbrack, 2002).
All the rotamers of DHBAs are presented in Supplementary Material available online at https://doi.org/10.1155/2017/5936239 (Figures S1-S6).
Isolation and identification of flavonoids, including flavone rotamers, from the herbal drug 'Crataegi folium Flore' (Hawthorn), Phytochemical analysis, 16: 334-341, 2005.
4 in which the influence of the THF ring's orientation on the potential energy of the rotamers is represented.
[sup.1]H NMR (CD[Cl.sub.3]): (Rotamers 1:1) 51.06 and 1.13 (t, J = 7.2 Hz, 3H, C[H.sub.3]), 2.95 (s, 3H, C[H.sub.3]), 3.29 and 3.35 (q, J = 7.2 Hz, 2H, C[H.sub.2]), 4.03 and 4.06 (s, 2H, C[H.sub.2]), 7.17 and 7.18 (dd, J = 9.5, 1.9 Hz, 1H), 7.38 and 7.39 (d, J = 8.4 Hz, 2H), 7.56 (dd, J = 9.5, 0.8 Hz, 1h), 7.8 (d, J= 8.4 Hz, 2H), 8.21 and 8.23 (J = 1.8, 0.8 Hz, 1H).
The topics include macromolecules and Chimera, algorithms dealing with distance, structure overlap and alignment, and rotamers and side-chain conformation.
In the present investigation, we have calculated the static and dynamic electronic (hyper)polarizabilities of the most stable conformations of 2,2' -bithiophene in the gas phase, aiming to identify physicochemical properties useful to discriminate the different rotamers. The frequency-dependent first-order hyperpolarizabilities were obtained for the SHG and EOPE NLO processes at the typical experimental wavelength of the Nd:YAG laser (1064 nm).
Andersen, "Isolation and identification of flavonoids, including flavone rotamers, from the herbal drug (hawthorn)," Phytochemical Analysis, vol.
Pratt, "High resolution [S.sub.1] [left arrow] [S.sub.0] fluorescence excitation spectra of hydroquinone--distinguishing the cis and trans rotamers by their nuclear spin statistical weights," The Journal of Chemical Physics, vol.
The density for Br2' is weaker than that for Br4', likely due to different rotamers of the second ring, which would maintain the position of Br4' but reposition Br2' in multiple orientations.