“…One of the meth­oxy groups is twisted slightly away from the plane [C—O—C—C torsion angle = −12.8 (3)°] while the others are almost co-planer [C—O—C—C torsion angles = −3.2 (3), 2.6 (3) and −3.6 (3)°]. …”
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“…In the crystal structure of the title compound, C(21)H(15)FNO(2) (+)·CF(3)SO(3) (−), the cations form inversion dimers through C—H⋯O, C—F⋯π and π–π inter­actions. These dimers are further linked by π–π inter­actions. …”
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“…In the title compound, C(19)H(16)O(3), an intra­molecular O—H⋯O=C hydrogen bond is formed between the hy­droxy and carbonyl groups on the naphthalene ring system, resulting in an S(6) ring. …”
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“…The two meth­oxy groups at the meta positions of the benzene ring are close to being coplanar with the ring [C—O—C—C = −0.6 (3) and 1.4 (3)°], whereas the third meth­oxy group, at the para position, is (+)-anti­clinal with respect to the benzene ring [C—O—C—C = 104.9 (2)°]. …”
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“…Individual mol­ecular units are engaged in weak C=O⋯C=O inter­actions [O⋯C = 2.814 (10) and 2.871 (11) Å], leading to the formation of supra­molecular chains which close pack, mediated by van der Waals contacts, in the bc plane.…”
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“…In the title compound, C(17)H(16)ClNO(2), the N=C—O—C—C fragment is planar within 0.029 (1) Å, and makes dihedral angles of 66.71 (8) and 59.61 (8)° with the planes of the chloro­phenyl and benzoyl rings, respectively. …”
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“…The eth­oxy group is essentially coplanar with the attached benzene ring [C—O—C—C torsion angle = 178.70 (16)°] as is the meth­oxy group with the pyridine ring [C—O—C—N torsion angle = −3.0 (3)°]. …”
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“…In this work we demonstrate that PMeV dsRNA is protected during 25 days when latex is diluted in citrate buffer pH 5.0 (1:1 v/v) and maintained at -20ºC. At the same temperature, some protection was observed for pure latex or latex diluted in ultra-pure water. …”
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“…In the title compound, C(12)H(17)NO(3), which was synthesized by Wagner–Meerwein rearrangement of the N-nitro­imine, the ring-junction C—C bond length is comparatively long [1.573 (2) Å] due to a steric repulsion between the methyl groups at these atoms, which also leads to an increase in the C—C—C angles along this C(4) chain [118.10 (13) and 115.04 (15) °, respectively]. In the crystal, N—H⋯O—C and N—H⋯O=C hydrogen bonds are formed between the amide group and the two O-atom acceptors of the lactone group, forming a chain along [001].…”
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“…The mean plane of the central ester group, C—O—C–(=O)—C (r.m.s. deviation = 0.0484 Å), is twisted away from the formyl nitro aryl and benzoate rings by 46.61 (5) and 49.93 (5)°, respectively. …”
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“…In the title compound, C(14)H(20)O(5), an inter­mediate in the synthesis of oligosaccharides, the glycosidic [H—C—O—C(H(3))] torsion angle ϕ(H) is 52.3° and the exo-cyclic [H—C—O—C(H(2))] torsion angle θ(H) is −11.7°. …”
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“…In the title picryl-substituted ester, C(13)H(6)BrN(3)O(8), the mean plane of the central ester C–O–C(=O)–C fragment (r.m.s. deviation= 0.0186 Å) is rotated by 84.73 (7)° and 19.92 (12)° to the picryl and phenyl rings, respectively. …”
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“…An intra­molecular N—H⋯O=C hydrogen bond occurs. In the crystal, mol­ecules are linked by pairs of N—H⋯O=C hydrogen bonds, forming centrosymmetric dimers.…”
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“…They show a clear evidence of a threshold to the new pattern of the pressure evolution of the static dielectric permittivity and DC electric conductivity already for P (t) ≈ 200MPa at T = 5(o) C and P (t) ≈ 300MPa at T = 25(o) C. BDS monitoring versus pressure tests up to P = 400MPa revealed particularly notable changes of properties after 30 minutes of compressing. …”
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“…Some Cells were kept at -80 (o)C while the others were kept at 4 ˚C. Afterwards the susceptible cells were transformed using either standard or lab protocol. …”
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“…TGA analysis of PAPy with higher M(n) showed greater thermal stability up to 170 (o)C. Viscosity measurements of polymer in formic acid at 30 (o)C indicated a polyelectrolyte nature of PAPy solutions. …”
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“…The structure of the title compound, C(23)H(26)O(5) or CH(2)=C(CH(3))—C(O)O—C(6)H(4)—O(O)C—C(6)H(4)—OC(6)H(13), has been determined. …”
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“…The high temperature decomposition of Si-O-C beyond 1,400 °C in an inert atmosphere and formation of a protective silica layer on material surfaces beyond 1,200 °C in an oxidative atmosphere are discussed from the viewpoints of the wide chemical composition of the Si-O-C materials. …”
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“…The evolution of the chemical composition and the appearance of C-O, C=O, and O=C-O groups on the graphite surface created by combining acid and electrochemical treatments was prejudicial to the formation of efficient domestic-wastewater-oxidizing bioanodes. …”
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“…XPS analysis demonstrated that the tribofilm is composed of FeO, Fe(3)O(4), FeOOH, FePO(4), and the compounds containing C–O–C and P–O bonds.…”
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