Results 91 to 100 of about 513,204 (270)

Trans-dichloro-2,3-naphthalenediamine bis[(2-methoxyethyl)­(diphenyl)phosphine]­ruthenium(II) Complex

open access: yesMolbank, 2010
Trans-dichloro-2,3-naphthalenediamine bis[(2-methoxyethyl)­(diphenyl)­phos­phine]­­ruthenium(II) complex Cl2Ru(h1-Ph2PCH2CH2OCH3)2(C10H10N2) has been obtained by reaction of equimolar amounts of Cl2Ru(PÇO)2 complex 2 with one equivalent of 2,3 ...
Ismail Warad
doaj   +1 more source

Quantitative Structure-Activity Relationship of Humic-Like Biostimulants Derived From Agro-Industrial Byproducts and Energy Crops

open access: yesFrontiers in Plant Science, 2020
Humic-like substances (HLSs) isolated by alkaline oxidative hydrolysis from lignin-rich agro-industrial residues have been shown to exert biostimulant activity toward maize (Zea mays L.) germination and early growth.
Davide Savy   +7 more
doaj   +1 more source

A 31P and 1H NMR investigation in vitro of normal and abnormal human liver

open access: yes, 1993
Spectral changes in human hepatic tumours and possible systemic effects of tumour on host liver were assessed by 31P and 1H in vitro NMR spectroscopy. The 1H and 31P spectra from liver tumour biopsies showed significant elevation in phosphoethanolamine ...
Foster, C.S.   +8 more
core  

31P nuclear magnetic resonance spectroscopy (31P NMR) ([4-(4-phosphonophenyl)phenyl]phosphonic acid)

open access: yes, 2022
dataset for 31P nuclear magnetic resonance spectroscopy (31P NMR) 31P NMR (202 MHz, DMSO-d6, ppm) δ = 12.47 (s)
Oßwald, Simon
core   +1 more source

Accumulation of N-acyl-ethanolamine phospholipids in rat brains during post-decapitative ischemia: a 31P NMR study

open access: yesJournal of Lipid Research, 1999
Phosphorus-31 nuclear magnetic resonance (31P NMR) spectroscopy has been used to study accumulation of N-acyl-ethanolamine phospholipids in rat brains during post-decapitative ischemia.
Birthe Moesgaard   +2 more
doaj   +1 more source

31P nuclear magnetic resonance spectroscopy (31P NMR) (2,7-bis(dimethoxyphosphoryl)biphenylene)

open access: yes, 2022
dataset for 31P nuclear magnetic resonance spectroscopy (31P NMR) 31P NMR (202 MHz, CDCl3, ppm) δ = 21.30 – 20.81 (m)
Zippel, Christoph
core   +1 more source

High Resolution NMR Spectroscopy as a Structural and Analytical Tool for Unsaturated Lipids in Solution

open access: yesMolecules, 2017
: Mono- and polyunsaturated lipids are widely distributed in Nature, and are structurally and functionally a diverse class of molecules with a variety of physicochemical, biological, medicinal and nutritional properties. High resolution NMR spectroscopic
Eleni Alexandri   +5 more
doaj   +1 more source

Analysis of emulsions of phospholipids by 31P-NMR.

open access: yesJournal of the agricultural chemical society of Japan, 1988
乳化状態におけるリン脂質の存在状態,乳化安定性の関連を明らかにするため卵黄PC, LPCの親水性headgroupの挙動を31P-NMRで解析した.半値幅は水相のpH,油粒子の大きさ,乳化方法などの影響を受け,それに伴い乳化安定性も変化した.とくにPC, LPCの等電点と考えられるpH付近での信号の広幅化や乳化後のクリーム層形成に伴う信号の変化が顕著であった.リン脂質を一定の濃度に調製し,重水-大豆油の系で乳化させたところ,比較的安定な乳化状態が得られたときはNMR信号の半値幅が80~300Hzの範囲にあった.このことから,乳化の安定化には親水性headgroupが一定の動的状態にあることが必要であると考えられる.
CHIBA, Kazuhiro, TADA, Masahiro
openaire   +2 more sources

Synthesis, characterization, and biological activity of a new class of dialkylphosphorylhydrazone derivatives of isatin

open access: yesQuímica Nova, 2014
Sixteen dialkylphosphorylhydrazones were synthesized by condensation of phosphorylhydrazines with substituted isatins. Products were characterized by FTIR, ¹H-NMR, 13C-NMR, and 31P-NMR.
Letícia Silotti Zampirolli   +6 more
doaj   +1 more source

Conventional versus ultrasound and microwave assisted synthesis: Some new environmentally friendly functionalized picolinium-based ionic liquids with potential antibacterial activity

open access: yesActa Pharmaceutica, 2015
A green chemistry approach has been adopted for the synthesis of thirty-four new picolinium-based ionic liquids using microwave (MW) and ultrasound (US) irradiation as well as conventional thermal heating. Their structures were confirmed by FT-IR, 1H NMR,
Messali Mouslim
doaj   +1 more source

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