Results 121 to 130 of about 131,344 (242)

50th anniversary of the Stanford SSRL synchrotron radiation and protein crystallography initiative. [PDF]

J Synchrotron Radiat
Helliwell JR, Nave C, Szebenyi DM.
europepmc   +1 more source

[Ti(py)4I2] as an Entry Point to Titanium(II) Chemistry via Titanium Metal Oxidation

Chemistry – A European Journal, EarlyView.
A strategically novel approach based on the oxidation of Ti metal enables access to Ti(II) chemistry. Controlled formation and complexation of Ti diiodide affords the Ti(II) complex [Ti(py)4I2], which serves as a convenient entry point to Ti(II) compounds.
Alexander Sedykh
wiley   +1 more source

Radiation damage in sub-Ångström resolution macromolecular crystallography: a low-dose study. [PDF]

Acta Crystallogr D Struct Biol
Bourenkov G, Paknia E, Flensburg C, Fogh R, Keller P, Vonrhein C, Bricogne G, Chari A.   +7 more
europepmc   +1 more source

H2O2 Activation and Alkane Oxidation by Copper Complexes With R‐dpa N3‐Tridentate Ligands: The Complex‐Based Dicopper Active Species as a Key Feature in the Efficient Alkane Oxidation

Chemistry – A European Journal, EarlyView.
Two reaction pathways, Paths 1 and 2, are involved in H2O2 activation by Cu complexes with N3‐tridentate ligands, depending on the ease of bridging structure formation. In Path 1, hydroxy radical (HO•) is formed from a hydroperoxo Cu(II) intermediate. In Path 2, a relevant complex‐based μ‐O• bridged Cu(II)2 active species is formed from a bis‐μ‐oxo Cu ...
Kyosuke Fujikawa, Momoe Kawahashi, Alexander Granichny, Siegfried Schindler, Hiroaki Kitagishi, Masahito Kodera   +5 more
wiley   +1 more source

AB₂X₄ spinel structures: similarity and differences between the centrosymmetric, Fd3m, and non-centrosymmetric, F4₁32, space groups. [PDF]

Acta Crystallogr B Struct Sci Cryst Eng Mater
Arakcheeva A, Magrez A, Chapuis G.
europepmc   +1 more source

A Novel Heterometallic Ring {Cr5Ni3} and New {Cr6Co2} and {Cr6Zn2} Rings

Chemistry – A European Journal, EarlyView.
A novel heterometallic ring containing five Cr(III) and three Ni(II) centers is reported. It forms an octagon and has a single isomer, as revealed by a combination of magnetic and EPR studies and collision‐induced dissociation mass spectrometry. ABSTRACT A new heterometallic ring, [Me4N][(Me4N)2Cr5Ni3F8(BTFB)16] (BTFB = 3,5‐bis(trifluoromethyl)benzoate)
Abdulelah Alsuhaymi, Niklas Geue, Adam Brookfield, Grigore A. Timco, Selena J. Lockyer, Gareth D. Smith, George F. S. Whitehead, Perdita E. Barran, David Collison, Richard E. P. Winpenny   +9 more
wiley   +1 more source

Phosphorescent Iridium Hydrazinonicotinic Acid (HYNIC) Complexes That Bind to Prostate Specific Membrane Antigen: Potential Photodynamic Therapy of Prostate Cancer

Chemistry – A European Journal, EarlyView.
A phosphorescent iridium(III) complex has been prepared with a 6‐hydrazinonicotinic acid (HYNIC) ligand tethered to a lysine‐ureido‐glutamatic acid pharmacophore, which binds to an enzyme, called prostate‐specific membrane antigen (PSMA), which is overexpressed in prostate cancer.
La'El Kimchi, Emily R. McGowan, Katherine A. Morgan, Jonathan M. White, Trevor A. Smith, Stacey E. Rudd, Paul S. Donnelly   +6 more
wiley   +1 more source

3D ED: Accessible, robust and accurate. [PDF]

IUCrJ
Kodjikian S.
europepmc   +1 more source

A Low‐Symmetry FeII Tetrahedron From a Flexible Tritopic Ligand

Chemistry – A European Journal, EarlyView.
A highly symmetric and flexible tris‐bidentate tritopic ligand forms an S4 meso homoleptic face‐capped FeII tetrahedron near‐quantitatively in acetonitrile. The addition of nitromethane solvent causes partial isomerization of this meso cage to the racemic homochiral tetrahedron, with the complexity of the system being moderated through solvophobic ...
Rosemary J. Goodwin, Nina R. Lawson, Michael G. Gardiner, Jack D. Evans, Paul E. Kruger, Dan Preston   +5 more
wiley   +1 more source

Nanosecond Structure of Radical Pair Intermediates from High-Frequency Quantum Oscillations: Insight into the Q_A^•- to Q_B Electron Transfer Step in Purple Bacterial Photosynthesis. [PDF]

J Phys Chem B
Matsuoka H, Link G, Heinen U, Poluektov OG, Utschig LM, Thurnauer MC, Weber S, Kothe G.   +7 more
europepmc   +1 more source