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Spin–vibronic coherence drives singlet–triplet conversion
Many aspects of materials chemistry rely on singlet–triplet spin conversion, but spin–vibronic effects are shown to accelerate the process when vibronic coupling causes the quantum-mechanical mixing of spin states.
- Shahnawaz R. Rather
- , Nicholas P. Weingartz
- & Lin X. Chen
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Article |
Isolation and characterization of a californium metallocene
Chemical experiments on californium are stymied by isotope availability and radioactivity considerations, but are advanced here with synthesis and characterization of an organometallic complex.
- Conrad A. P. Goodwin
- , Jing Su
- & Joseph W. Ziller
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Article |
A crystalline tri-thorium cluster with σ-aromatic metal–metal bonding
A crystalline cluster exhibits thorium–thorium bonding, adding to our knowledge of actinide–actinide bonding.
- Josef T. Boronski
- , John A. Seed
- & Stephen T. Liddle
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Article |
Strongly reducing magnesium(0) complexes
Strongly reducing β-diketiminate complexes containing magnesium in its zero oxidation state are reported, among which is a compound with a linear triatomic Mg–Mg–Mg core.
- B. Rösch
- , T. X. Gentner
- & S. Harder
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Article |
Structural and spectroscopic characterization of an einsteinium complex
An einsteinium coordination complex is synthesized and spectroscopically characterized using less than 200 nanograms of einsteinium, enabling examination of its structure and measurement of an einsteinium bond distance.
- Korey P. Carter
- , Katherine M. Shield
- & Rebecca J. Abergel
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Article |
Compression of curium pyrrolidine-dithiocarbamate enhances covalency
Enhanced covalency is achieved for a curium complex with curium–sulfur bonds by subjecting the compound to high pressures, indicating that pressure can be used to tune covalency in actinide compounds.
- Joseph M. Sperling
- , Evan J. Warzecha
- & Thomas E. Albrecht-Schönzart
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Article |
Redox-switchable carboranes for uranium capture and release
Redox-switchable chelation is demonstrated for a carborane cluster molecule, leading to controlled chemical or electrochemical capture and release of uranyl in monophasic or biphasic model solvent systems.
- Megan Keener
- , Camden Hunt
- & Gabriel Ménard
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Letter |
A hexagonal planar transition-metal complex
A six-coordinate transition-metal complex with a hexagonal planar geometry is isolated and characterized.
- Martí Garçon
- , Clare Bakewell
- & Mark R. Crimmin
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Letter |
Synthesis, structure and reaction chemistry of a nucleophilic aluminyl anion
An aluminium compound is synthesized in which the aluminium is formally anionic; reactions with various substrates suggest that this compound acts as the nucleophilic partner in both metal–carbon and metal–metal bond-forming reactions.
- Jamie Hicks
- , Petra Vasko
- & Simon Aldridge
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Letter |
Sterically controlled mechanochemistry under hydrostatic pressure
‘Molecular anvil’ molecules consisting of a compressible mechanophore and incompressible ligands react under hydrostatic pressure to produce elemental metal via an unexplored mechanism.
- Hao Yan
- , Fan Yang
- & Nicholas A. Melosh
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Letter |
A spin transition mechanism for cooperative adsorption in metal–organic frameworks
Metal–organic frameworks that undergo a cooperative spin transition at neighbouring metal centres upon coordination to CO exhibit large CO separation capacities with only small changes in temperature.
- Douglas A. Reed
- , Benjamin K. Keitz
- & Jeffrey R. Long
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Letter |
A series of energetic metal pentazolate hydrates
Metal complexes of the pentazole anion exhibit multiple coordination modes, through ionic, covalent and hydrogen-bonding interactions, and good thermal stability with onset decomposition temperatures greater than 100 °C.
- Yuangang Xu
- , Qian Wang
- & Ming Lu
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Letter |
Self-assembly of tetravalent Goldberg polyhedra from 144 small components
Graph theory is used to guide the self-assembly of a complex consisting of 48 palladium ions and 96 ligands, with the topology of a tetravalent Goldberg polyhedron.
- Daishi Fujita
- , Yoshihiro Ueda
- & Makoto Fujita
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Letter |
The active site of low-temperature methane hydroxylation in iron-containing zeolites
Iron-containing zeolites have an exceptional ability to convert methane into methanol, but their active site have been hard to study; now, magnetic circular dichroism has been used to explore the reactive species, providing a technique that should be generally applicable, and revealing the value of constraining active sites within a lattice to improve catalyst functionality.
- Benjamin E. R. Snyder
- , Pieter Vanelderen
- & Edward I. Solomon
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Letter |
Direct observation of bond formation in solution with femtosecond X-ray scattering
Time-resolved X-ray solution scattering is used to visualize and probe the dynamics of the individual steps in the formation of a gold trimer complex, including covalent bond formation, with a time resolution of ∼500 femtoseconds.
- Kyung Hwan Kim
- , Jong Goo Kim
- & Shin-ichi Adachi
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News & Views |
Self-assembly gets new direction
By controlling the placement of 'sticky' patches on particles, assemblies can be made that mimic atomic bonding in molecules. This greatly expands the range of structures that can be assembled from small components. See Article p.51
- Matthew R. Jones
- & Chad A. Mirkin
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News & Views |
Two-armed silicon
Compounds of transition metals are often used to activate small molecules for chemical reactions. The discovery of unusual silicon-containing compounds raises the prospect of metal-free activators.
- Robert West
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Letter |
Frictional ageing from interfacial bonding and the origins of rate and state friction
- Qunyang Li
- , Terry E. Tullis
- & Robert W. Carpick
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Letter |
Overcoming lability of extremely long alkane carbon–carbon bonds through dispersion forces
- Peter R. Schreiner
- , Lesya V. Chernish
- & Andrey A. Fokin
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Review Article |
Catalysis for fluorination and trifluoromethylation
- Takeru Furuya
- , Adam S. Kamlet
- & Tobias Ritter
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Obituary |
William Nunn Lipscomb Jr (1919–2011)
Chemist who discovered a new kind of bonding.
- Russell N. Grimes
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Research Highlights |
Chemistry: Nitrogen radical synthesized
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Observation of a promethium complex in solution
Main-group elements as transition metals