Journal ArticleDOI
Noble-gas hydrides: new chemistry at low temperatures.
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TLDR
The matrix-isolation synthesis of noble-gas hydrides, their spectroscopic and structural properties, and their stabilities are discussed, including the existence of related polymers, aggregates, and even HNgY crystals, and areas that appear promising for further study include the extension of argon chemistry, preparation of new bonds with noble- gas atoms, and studies of radon compounds.Abstract:
Noble-gas chemistry has been undergoing a renaissance in recent years, due in large part to noble-gas hydrides, HNgY, where Ng = noble-gas atom and Y = electronegative fragment. These molecules are exceptional because of their relatively weak bonding and large dipole moments, which lead to strongly enhanced effects of the environment, complexation, and reactions. In this Account, we discuss the matrix-isolation synthesis of noble-gas hydrides, their spectroscopic and structural properties, and their stabilities. This family of species was discovered in 1995 and now has 23 members that are prepared in noble-gas matrices (HXeBr, HKrCl, HXeH, HXeOH, HXeO, etc.). The preparations of the first neutral argon molecule, HArF, and halogen-free organic noble-gas molecules (HXeCCH, HXeCC, HKrCCH, etc.) are important highlights of the field. These molecules are formed by the neutral H + Ng + Y channel. The first addition reaction involving HNgY molecules was HXeCC + Xe + H → HXeCCXeH, and this led to the first hydrid...read more
Citations
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Spectroscopic and theoretical studies of transition metal oxides and dioxygen complexes.
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Photochemistry of transition metal hydrides
Robin N. Perutz,Barbara Procacci +1 more
TL;DR: This work identifies five characteristic photoprocesses of metal monohydride complexes associated with the M-H bond, of which the most widespread are M- H homolysis and R-H reductive elimination, which are likely to be dissociative.
Journal ArticleDOI
Matrix-isolation and ab initio study of HNgCCF and HCCNgF molecules (Ng = Ar, Kr, and Xe).
Leonid Khriachtchev,A.V. Domanskaya,Jan Lundell,Alexander V. Akimov,Markku Räsänen,Eugenii Ya. Misochko +5 more
TL;DR: Three new noble-gas molecules prepared in low-temperature Kr and Xe matrices from the HCCF precursor by UV photolysis and thermal annealing are reported, suggesting a higher stability against dissociation of HNgCCF molecules compared to HngCCH reported previously.
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Carbon Monoxide Bonding With BeO and BeCO3: Surprisingly High CO Stretching Frequency of OCBeCO3
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References
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Journal ArticleDOI
A stable argon compound
TL;DR: It is reported that the photolysis of hydrogen fluoride in a solid argon matrix leads to the formation of argon fluorohydride (HArF), which is identified by probing the shift in the position of vibrational bands on isotopic substitution using infrared spectroscopy and indicates that HArF is intrinsically stable, owing to significant ionic and covalent contributions to its bonding.
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Neutral rare-gas containing charge-transfer molecules in solid matrices. I. HXeCl, HXeBr, HXeI, and HKrCl in Kr and Xe
TL;DR: In this article, the authors show the participation of rare gas atom(s) in these new compounds, based on studies of the thermally generated species in mixed rare gas matrices, and their vibrational spectra are discussed and compared with those calculated with ab initio methods.
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Atypical compounds of gases, which have been called ‘noble’
TL;DR: This critical review describes fascinating experimental and theoretical advances in 'noble gas' chemistry during the last twenty years, and has taken a somewhat unexpected course since 2000.
Journal ArticleDOI
Fluorine-free organoxenon chemistry: HXeCCH, HXeCC, and HXeCCXeH.
Leonid Khriachtchev,Hanna Tanskanen,Jan Lundell,Mika Pettersson,Harri Kiljunen,Markku Räsänen +5 more
TL;DR: This work demonstrates a new way to activate the H-Ctbd1;C- group without use of XeF(2), which can extend the range of organoxenon compounds.
Journal ArticleDOI
Formation of novel rare-gas molecules in low-temperature matrices
TL;DR: The reviewed state-of-the-art suggests this field is at an early stage of development with major open questions bearing on the surprising properties of the molecules and on the formation mechanisms, which are part of the challenge for the future.