methyl groups
Effects of symmetry, methyl groups and serendipity on intramolecular vibrational energy dispersal
... of methyl groups does play a prominent role, both in the build-up of the DOS, but also in the facilitation of coupling between vibrational levels of different ...of methyl groups appears to ...
45
Partitioning of the Maize Epigenome by the Number of Methyl Groups on Histone H3 Lysines 9 and 27
... Major conclusions are that (1) H3K27me2 marks classical heterochromatin; (2) H3K4me2 is limited to areas between and around H3K27me2-marked chromomeres, clearly demarcating the euchromat[r] ...
13
The full nonrigid group theory for trimethylamine
... The nonrigid molecule group theory (NRG) in which the dynamical symmetry op- erations are defined as physical operations is a new field in chemistry. Smeyers in a series of papers applied this notion to determine the ...
6
Bis(2 methyl 2 propanammonium) chromate
... H atoms of methyl groups were placed at calculated positions and re®ned as riding, with CÐH = 0.96 AÊ. Atom H4, bonded to N, was located in difference Fourier syntheses and was re®ned isotropically. The Cr ...
8
Propyl gallate dihydrate
... the methyl groups of the propyl ester regions interact with each other ...the methyl groups of the short alkyl groups are different from the interdigitizing interaction with the long ...
10
Ruthenium(arene){poly(pyrazolyl)borates}: Synthesis, reactivity and molecular orbital calculations
... the methyl substituents on the pyrazolyl groups and the obvious absence o f the wopropyl and methyl substituents on the ...the methyl substituents on the pyrazolyl groups of the ...
358
Poly[diaqua(μ4 carboxylatomethylphosphonato)(μ4 carboxymethylphosphonato)pentadecamethylpentatin(IV)]
... three methyl groups (one of which is disordered about the twofold rotation axis) and is symmetrically trans coordinated by two phosphonate groups with Sn—O = ...
10
The Role of Frontline Leadership in Organizational Learning: Evidence from Incremental Business Process Improvement
... Previous studies have shown that histone H3 and H4 peptide-CoA bisubstrate inhibitors display inhibitory effects towards Tip60 [15]. Studies have also reported that the chromodomain of Tip60 has a high binding affinity ...
47
Self trapping and excited state absorption in fluorene homo polymer and copolymers with benzothiadiazole and tri phenylamine
... The side-chains on the fluorene units of the molecules studied have been replaced by methyl-groups, as this is an efficient way to speed up the calculations without compromising the accura[r] ...
12
6,6 Dimethyl 2 (1 methylethenyl) 3,4,5 tris(1 methylethylidene) 1 (2 methylpropen 1 yl)cyclohexane
... Refinement Methyl H atoms were identified in difference syntheses, idealized and then refined using rigid methyl groups C—H = 0.98 Å and H—C—H = 109.5° Other H atoms were included using [r] ...
13
Novel synthesis of Pyrimido[4,5- e] [1,3,4] thiadiazines
... 6 was amplified by lacking of the expected isotopic pattern of chlorine atom in their mass spectra. The 1 H NMR spectra of 4a-e also sowed the methylen groups due the substituted amines plus a slight shift of ...
7
3β Hydroxy 28 norolea 12,17 dien 11 one
... the methyl groups were refined with common isotropic displacement parameters for the H atoms of the same group (or for all the methyl groups in the disordered part, ...
19
Crystal structure of an epoxysterol: 9α,11α epoxy 5α cholest 7 ene 3β,5,6α triol 3,6 diacetate
... acetyloxy groups, the C18 and C19 methyl groups and the alkyl tail have the same configuration as in the present one, and, moreover, an hydroxy group at C9 and a keto group at C11 are ...
13
Cyclodec 2′ ynyl (1S,1′R) (–) 4,7,7 trimethyl 3 oxo 2 oxabicyclo[2 2 1]heptane 1 carboxylate
... Refinement H atoms were placed in calculated positions with Uiso constrained to be 1.5Ueq of the carrier atom for the methyl groups and with Uiso constrained to be 1.2Ueq of the carrier [r] ...
9
Bis[μ 1 (2,4,6 trimethylphenyl)ethanolato O:O]bis(dimethylaluminium)
... For many years, aluminium alkoxides and aryloxides have been utilized as reagents in organic synthesis (Zietz et al. , 1983). However, the development of heterobimetallic reagents for use in asymmetric transformations ...
9
trans Dichlorobis[(S) (–) 1 (1 naphthyl)ethylamine]palladium(II)
... The title complex, [PdCl2C12H13N22], has two amine ligands coordinated in such a way that the naphthyl and methyl groups are located in the same hemisphere with respect to the [PdN2Cl2] [r] ...
9
Indomethacin tert butanol solvate at 120 K
... the methyl groups of the solvent, and ®ve weak CÐH interactions involving the alcohol and indomethacin are present, as listed in Table 3 and shown in ...
9
Synthesis, Characterization and Antimicrobial Evaluation of 1,3,4-Oxadiazoles Clubbed Schiff Base Derivatives
... material methyl 4-chlorobenzoate by routine ...(methyl) groups increased antibacterial activity and electron donating group such as methoxy, hydroxy and methyl that were taken as substitutes ...
12
Substituents effect on cooxidation rate of chalcones and oxalic acid using chromium (VI)
... Electron-releasing groups like methoxy and methyl groups enhances the rate of cooxidation of chalcones, even if it is present at the para position of acetophenone moiety of chalcones, and to our ...
9
Fenofibrate
... propyl methine carbon and the centroid of the two methyl groups. Values near zero or 180° would indicate a highly symmetric orientation of the isopropyl group. In this orientation, the isopropyl group's ...
8