Results 71 to 80 of about 17,683 (202)
Distinct Ligand‐ and Metal‐Centered Phosphorescence in a Terbium Carbazolyl Complex
Chemistry – A European Journal, EarlyView.Terbium and lanthanum carbazolide complexes show two distinct modes of luminescence: Strongly temperature‐dependent narrow‐line terbium emission could be induced. In addition, both the terbium and the lanthanum complexes show broad‐line interligand emission processes with excited states of microsecond life‐time.
Xiaofei Sun +9 more
wiley +1 more source
Exploring the ring-closing metathesis for the construction of the solomonamide macrocyclic core: identification of bioactive precursors [PDF]
, 2018 New synthetic strategies directed toward the novel cyclopeptides solomonamides have been explored utilizing an olefin metathesis as the key reaction.
Carrillo Fernández, Paloma +7 more
core +3 more sources
The Stabilization of High‐Nitrogen Systems: 10 Catenated Nitrogen Chain
Chemistry – A European Journal, EarlyView.Improving the understanding of high‐nitrogen materials. ABSTRACT High‐nitrogen materials have attracted intense interest in recent decades due to their unique chemical, physical, and biological properties. Stabilizing high‐nitrogen materials is often challenging as they become more unstable with increasing nitrogen catenation and nitrogen mass ...
Nicholas F. Scherschel +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Luminescent coordination polymers of Group 1 (Li, K, Cs) and 2 (Mg─Ba) cations with gold(I) iso‐maleonitriledithiolate ({Au2[S2C = C(CN)2]}2−) units were prepared; 1‐D aurophilic chains are present in all cases. The structures strongly depend on cation charge and size, with N‐cyano coordination observed in the Gp 1 and larger Gp 2 cations. Increasingly
Jefferson A. Pells +2 more
wiley +1 more source
Templated synthesis of cyclic poly(ionic liquid)s
, 2019 Charged cyclic polymers, e.g. cyclic DNAs and polypeptides, play enabling roles in organisms, but their synthesis was challenging due to the well known polyelectrolyte effect.
Tang, Qingquan +3 more
core +1 more source
Effects of NHC-Backbone Substitution on Efficiency in Ruthenium-Based Olefin Metathesis [PDF]
, 2009 series of ruthenium olefin metathesis catalysts bearing N-heterocyclic carbene (NHC) ligands with varying degrees of backbone and N-aryl substitution have been prepared.
Bourg, Jean-Baptiste +4 more
core +2 more sources
Chemistry – A European Journal, EarlyView.A readily accessible, air‐ and moisture‐stable palladium precatalyst, [Pd(1‐MeNAP)(tBuBrettPhos)]OTf, enables the direct N‐arylation of NH‐sulfoximines with (hetero)aryl chlorides under exceptionally mild conditions ideal for late‐stage diversification of drug‐like scaffolds.
Sourav Manna +5 more
wiley +1 more source
The Parent GaH2SbH2 Monomer Stabilized by an N‐Heterocyclic Carbene
ChemistryEuropeThe synthesis and characterization of the stibanyltrielanes IDipp·GaH2Sb(SiMe3)2 (1a) and IDipp·BH2Sb(SiMe3)2 (1b) are presented. 1a represents the first example for the isolation of a molecular stibanylgallane monomer stabilized only by a Lewis base (LB)
Robert Szlosek +5 more
doaj +1 more source
Synthesis and Reactivity of Extremely Electron‐Poor Au(III) Complexes Bearing OTf− or NTf2− Ligands
Chemistry – A European Journal, EarlyView.A new family of electron‐poor Au(III) cations bearing bistriflimide or triflate ligands is reported. These cations can undergo direct C─H metalation with simple arenes to give mono‐aryl cations. Subsequent addition of simple halide sources allows for reductive elimination of aryl halides, formally from Ar─H and X−. ABSTRACT The synthesis and structural
Lachlan Barwise +6 more
wiley +1 more source
Vinylic Addition Polynorbornene in Catalysis [PDF]
, 2019 Vinylic addition polynorbornenes (VA-PNB) result from the insertion polymerization of norbornene or specific norbornene derivatives catalyzed by transition metal com- plexes. The VA-PNB skeleton is completely aliphatic and keeps the bicyclic structure of
Albéniz Jiménez, Ana Carmen +1 more
core +2 more sources