Effects of companion crops and tillage on soil phosphorus in a Brazilian oxisol: a chemical and 31P NMR spectroscopy study

2021 ◽  
Author(s):  
Diogo Eberhardt ◽  
Robélio Marchão ◽  
Hervé Quiquampoix ◽  
Christine Le Guernevé ◽  
Volaniaina Ramaroson ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
31P Nmr ◽  
Soil Phosphorus ◽  
31P Nmr Spectroscopy ◽  
Spectroscopy Study

Characterization of soil phosphorus in a fire-affected forest Cambisol by chemical extractions and 31P-NMR spectroscopy analysis

2010 ◽  
Vol 408 (16) ◽  
pp. 3342-3348 ◽  
Author(s):  
María-Belén Turrion ◽  
Francisco Lafuente ◽  
María-José Aroca ◽  
Olga López ◽  
Rafael Mulas ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
31P Nmr ◽  
Soil Phosphorus ◽  
31P Nmr Spectroscopy ◽  
Spectroscopy Analysis ◽  
Chemical Extractions

scholarly journals A General Protocol for the Synthesis of H-α-Hydroxyphosphinates

Synthesis ◽  
2018 ◽  
Vol 51 (02) ◽  
pp. 421-432 ◽  
Author(s):  
Julia Deschamp ◽  
Marc Lecouvey ◽  
Jade Dussart ◽  
Maelle Monteil ◽  
Olivier Gager ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
31P Nmr ◽  
31P Nmr Spectroscopy ◽  
Spectroscopy Study ◽  
Aromatic Substrates ◽  
Silylating Agent ◽  
Synthetic Procedure ◽  
Complementary Study

A general synthetic procedure was developed for H-α-hydroxyphosphinates via Abramov reaction. The present work is a complementary study to those reported till now. This methodology has the advantage that it can be applied to various aliphatic and (hetero)aromatic substrates. The H-α-hydroxyphosphinates were easily purified and obtained in good to excellent yields in shorter times. A 31P NMR spectroscopy study has shown that only 2 equivalents of a silylating agent were required.

scholarly journals 1H- and 31P-NMR Spectroscopy Study of Paramagnetic Lanthanide Coordination Compounds [LnL3 • Phen] (L = CCl3C(O)NP(O)(OCH3)2)

2019 ◽  
Vol 64 (9) ◽  
pp. 855
Author(s):  
V. A. Trush ◽  
O. O. Litsis ◽  
T. Yu. Sliva ◽  
Ya. O. Gumenyuk ◽  
V. M. Amirkhanov
Keyword(s):  
Nmr Spectroscopy ◽  
Coordination Sphere ◽  
Coordination Compounds ◽  
Room Temperature ◽  
31P Nmr ◽  
Chemical Shifts ◽  
31P Nmr Spectroscopy ◽  
Spectroscopy Study

A series of lanthanide coordination compounds with dimethyl-N-trichloroacetylamidophosphate CCl3C(O)N(H)P(O)(OCH3)2 (HL) [HL = CCl3C(O)N(H)P(O)(OCH3)2 is a ligand of the carbacylamidophosphate (CAPh) type], whose compositions are described by the formula [LnL3 · Phen], where Ln = La, Ce, Pr, Nd, Sm, Tb, Dy, Ho, and Er; L is the deprotonized form of HL; and Phen is 1,10-Phenantroline, has been synthesized. Acetonic solutions of HL and complexes synthesized on its basis are studied by means of 1H- and 31P-NMR spectroscopy at room temperature (298 K). Since the chemical shifts of 1H signals have the pseudocontactorigin, the isotropic shifts of 31P signals are managed to be decomposed into the contact and pseudocontact components. It is found that there are two series of complexes in the solution of [LnL3 · Phen] compounds with the same structure of the coordination sphere within each of the series Ln = (Ce, Pr, Nd, Sm) (series L1) and Ln = (Tb, Dy, Ho, Er) (series L2). The values of the constant of superfine interaction for those complexes are calculated: 0.18 MHz (series L1) and 0.13 MHz (series L2).

Dynamic light scattering and 31P NMR spectroscopy study of the self-assembly of deoxyguanosine 5'-monophosphate

2002 ◽  
Vol 7 (1) ◽  
pp. 95-102 ◽  
Author(s):  
L. Spindler ◽  
I. Drevenšek Olenik ◽  
M. Čopič ◽  
R. Romih ◽  
J. Cerar ◽  
...  
Keyword(s):  
Light Scattering ◽  
Nmr Spectroscopy ◽  
Dynamic Light Scattering ◽  
Self Assembly ◽  
31P Nmr ◽  
The Self ◽  
31P Nmr Spectroscopy ◽  
Spectroscopy Study

Characterization of fluvo-aquic soil phosphorus affected by long-term fertilization using solution 31P NMR spectroscopy

2019 ◽  
Vol 692 ◽  
pp. 89-97 ◽  
Author(s):  
Xiuli Xin ◽  
Xianfeng Zhang ◽  
Wenying Chu ◽  
Jingdong Mao ◽  
Wenliang Yang ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
31P Nmr ◽  
Soil Phosphorus ◽  
31P Nmr Spectroscopy ◽  
Solution 31P Nmr Spectroscopy
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