Results 81 to 90 of about 14,858 (206)
Umlagerungen bizyklischer 2-Vinyl-aziridine
CHIMIA, 1972 Addition of phthalimidonitrene to cyclopentadiene (5), 1,3-cyclohexadiene (6) as well as cyclooctatetraene (7) led to the bicyclic 2-vinyl-aziridines: N-phthalimido-6-aza-bicyclo[3.1.0]hex-2-ene (8a), N-phthalimido-7-aza-bicyclo[4.1.0]hept-2-ene (9a ...
Lienhard Hoesch, André S. Dreiding
doaj +1 more source
New Discoveries in the Realm of Metal–Metal Multiple Bonds:[η5-(C5Me5)Co2], the First Organometallic Multiple-Bond Complex without Bridging Ligands [PDF]
, 1991 Double bond, yes or no? That is the poignant question in the case of the complex [Cp*CoCoCp*] prepared by J.J. Schneider et al. The Co-Co distance and the number of electrons suggest a double bond, while the H-1-NMR spectrum and the poor reactivity ...
Wachter, Joachim
core +1 more source
Carbene‐Functionalized Bulky‐Cyclopentadiene Rings
Chemistry – A European JournalAbstractA series of significantly bulky mono‐ and di‐substituted cyclic alkyl‐amino carbene (cAAC)‐ functionalized cyclopentadiene ring (Cp) compounds were synthesized. The functionalization of the Cp ring with cAAC ligands makes them significantly bulkier, while retaining their ligation properties.
Selvakumar Arumugam +7 more
openaire +4 more sources
Precision‐Engineered Poly(GMA‐EGDMA) Microspheres for Multifunctional Applications
Particle &Particle Systems Characterization, Volume 43, Issue 1, January 2026.The study presents multifunctional poly(GMA‐EGDMA) microspheres designed for advanced separation, catalysis, and biomedical engineering. Through precision synthesis and surface engineering, these microspheres exhibit excellent stability, tunable porosity, and high reactivity.
Imran Ali +3 more
wiley +1 more source
Lipid Nanoparticles for Delivery of CRISPR Gene Editing Components
Small Methods, Volume 10, Issue 2, 22 January 2026.The review presents a comprehensive overview of each component of lipid nanoparticles（LNPs）and their effects on editing efficiency. It specifically highlights strategies for achieving non‐liver delivery, aiming for broader applications in gene editing. Furthermore, this review summarizes the applications of LNPs in gene editing and offers insights for ...
Fan Wu +6 more
wiley +1 more source
Spiro annulation of cage polycycles via Grignard reaction and ring-closing metathesis as key steps
Beilstein Journal of Organic Chemistry, 2015 A simple synthetic strategy to C2-symmetric bis-spiro-pyrano cage compound 7 involving ring-closing metathesis is reported. The hexacyclic dione 10 was prepared from simple and readily available starting materials such as 1,4-naphthoquinone and ...
Sambasivarao Kotha +3 more
doaj +1 more source
Empirical LCAO parameters for $\pi$ molecular orbitals in planar organic molecules
, 2008 We present a parametrization within a simplified LCAO model (a type of Hueckel model) for the description of $\pi$ molecular orbitals in organic molecules containing $\pi$-bonds between carbon, nitrogen, or oxygen atoms with $sp^2$ hybridization, which ...
Hawke, Laurence +2 more
core +3 more sources
Crystal structure of 1,2,3,4,5-pentamethyl-1,3-cyclopentadiene, C10H16
Zeitschrift für Kristallographie - New Crystal Structures, 2017 C10H16, orthorhombic, P212121 (no. 19), a = 4.4804(6) Å, b = 11.7784(12) Å, c = 16.761(2) Å, V = 884.5(2) Å3, Z = 4, Rgt(F) = 0.0360, wRref(F2) = 0.0596, T = 120 K.
Benda Christian +2 more
doaj +1 more source
Química Nova, 2007 A computational quantum chemistry experiment is described of Diels-Alder reactions between 2-cycloenones and cyclopentadiene. The effects of FMO-Frontier Molecular Orbitals (HOMO-LUMO) and of the withdrawing nature of substituents at the C=C bond of ...
Valdemar Lacerda Júnior +4 more
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Pyramidalisierte Brückenkopfolefine als reaktive Zwischenstufen
CHIMIA, 1981 The generation of tricyclo [4.1.0.02,7]hept-1(7)-ene (8), of tricyclo[3.1.0.02,6]hex-1(6)-ene (9), and of 1,7- and 1,5-dehydro-quadricyclane (43a and b) as reactive intermediates is described.
Günter Szeimies
doaj +1 more source