Synthesis of ketoximes via a solvent-assisted and robust mechanochemical pathway
作者:Christer B. Aakeröy、Abhijeet S. Sinha
DOI:10.1039/c3ra40585k
日期:——
mechanochemical route to ketone–oxime conversions has been established for a broad range of ketones via a simple mortar–pestle grinding method. The relativereactivity of aldehydes vs. ketones under these conditions has also been explored, along with an examination of the possible connection between reactivity and electronic substituent effects.
Approaches to Molecular Magnetic Materials from the Use of Cyanate Groups in Higher Oxidation State Metal Cluster Chemistry: Mn
<sub>14</sub>
and Mn
<sub>16</sub>
作者:Dimitris I. Alexandropoulos、Constantina Papatriantafyllopoulou、Chaoran Li、Luís Cunha‐Silva、Manolis J. Manos、Anastasios J. Tasiopoulos、Wolfgang Wernsdorfer、George Christou、Theocharis C. Stamatatos
DOI:10.1002/ejic.201300099
日期:2013.5
The initial employment of cyanato groups in higheroxidationstate manganese clusterchemistry, in conjunction with the gem-diolate form of di-2-pyridylketone or 2,6-diacetylpyridine dioxime chelate ligands, has afforded structurally interesting MnII/III14 and MnII/III/IV16 clusters, respectively. In both complexes, the end-on bridging cyanato groups show an obvious preference in binding through their
氰基在较高氧化态锰簇化学中的初始应用,结合二-2-吡啶基酮或 2,6-二乙酰吡啶二肟螯合配体的偕二醇形式,提供了结构有趣的 MnII/III14 和 MnII/III/分别为 IV16 个簇。在这两种复合物中,末端桥连氰基在通过它们的 O 原子结合时表现出明显的偏好,与同原子型 N3-配体的连接显着不同。Mn14 化合物在低于 5 K 时显示出完全可见的异相信号,在低于 2 K 时显示出较大的滞后回线。
Anionic Guests in Prismatic Cavities Generated by Enneanuclear Nickel Metallacycles
作者:Jordi Esteban、Mercè Font-Bardia、Albert Escuer
DOI:10.1021/ic402651k
日期:2014.1.21
The combination of polydentate aminated ligands with the 2-pyridyloxime-nickel-azide system leads to series of clusters with unprecedented topologies. Among them, a remarkable family of Ni9} metallacycles that are capable of selective encapsulation of azide/halide anions in a cryptand-like cavity through hydrogen-bond interactions has been characterized.
Transmembrane signal transduction by cofactor transport
作者:Istvan Kocsis、Yudi Ding、Nicholas H. Williams、Christopher A. Hunter
DOI:10.1039/d1sc03910e
日期:——
moiety, which allows modulation of activity through covalent conjugation with aldehydes. Conjugation with a sugar derivative abolished activity, because the resulting hydrazone is too polar to cross the bilayer, whereas conjugation with a pyridine derivative increased activity. Coupling transport with catalysis provides a straightforward mechanism for generating complex systems using simple components