Results 61 to 70 of about 95,078 (410)
Tunnelling splitting in the phosphine molecule [PDF]
J. Chem. Phys. 145, 091102 (2016), 2016 Splitting due to tunnelling via the potential energy barrier has played a significant role in the study of molecular spectra since the early days of spectroscopy. The observation of the ammonia doublet led to attempts to find a phosphine analogous, but these have so far failed due to its considerably higher barrier.
arxiv +1 more source
Phosphonate–Phosphinate Rearrangement
The Journal of Organic Chemistry, 2015 LiTMP metalated dimethyl N-Boc-phosphoramidates derived from 1-phenylethylamine and 1,2,3,4-tetrahydronaphthalen-1-ylamine highly selectively at the CH3O group to generate short-lived oxymethyllithiums. These isomerized to diastereomeric hydroxymethylphosphonamidates (phosphate–phosphonate rearrangement).
Alexander Roller +2 more
openaire +3 more sources
Stoichiometric and Catalytic Synthesis of Alkynylphosphines
Molecules, 2012 Alkynylphosphines or their borane complexes are available either through C–P bond forming reactions or through modification of the phosphorus or the alkynyl function of various alkynyl phosphorus derivatives.
Annie-Claude Gaumont +3 more
doaj +1 more source
ExoMol line lists VII: The rotation-vibration spectrum of phosphine up to 1500 K [PDF]
Mon. Not. R. astr. Soc., 446, 2337-2347 (2015), 2014 A comprehensive hot line list is calculated for $^{31}$PH$_3$ in its ground electronic state. This line list, called SAlTY, contains almost 16.8 billion transitions between 7.5 million energy levels and it is suitable for simulating spectra up to temperatures of 1500~K.
arxiv +1 more source
ACS Catalysis, 2018 We have prepared a previously unreported family of P-stereogenic [2.2.1] bicyclic chiral phosphines through straightforward syntheses starting from the natural product carvone.
Andrew J. Smaligo +2 more
semanticscholar +1 more source
Architecture and synthesis of P,N-heterocyclic phosphine ligands
Beilstein Journal of Organic Chemistry, 2020 Diverse P,N-phosphine ligands reported to date have performed exceptionally well as auxiliary ligands in organometallic catalysis. Phosphines bearing 2-pyridyl moieties prominently feature in literature as compared to phosphines with five-membered N ...
Wisdom A. Munzeiwa +2 more
doaj +1 more source
Venus, Phosphine and the Possibility of Life [PDF]
arXiv, 2023 The search for life elsewhere in the universe is one of the central aims of science in the 21st century. While most of this work is aimed at planets orbiting other stars, the search for life in our own Solar System is an important part of this endeavour.
arxiv
Re-analysis of the 267-GHz ALMA observations of Venus: No statistically significant detection of phosphine [PDF]
, 2020 Context: ALMA observations of Venus at 267 GHz have been presented in the literature that show the apparent presence of phosphine (PH3) in its atmosphere. Phosphine has currently no evident production routes on the planet's surface or in its atmosphere.
arxiv +1 more source
Expanding the scope of ligand substitution from [M(S2C2Ph2] (M = Ni2+, Pd2+, Pt2+) to afford new heteroleptic dithiolene complexes [PDF]
, 2017 The scope of direct substitution of the dithiolene ligand from [M(S2C2Ph2)2] [M = Ni2+ (1), Pd2+ (2), Pt2+ (3)] to produce heteroleptic species [M(S2C2Ph2)2Ln] (n = 1, 2) has been broadened to include isonitriles and dithiooxamides in addition to ...
Donahue, James P. +8 more
core +1 more source