The structures of (CH 3) 3Ga·N(CH 3) 3 and (CH 3) 3·P(CH 3) 3 are determined by electron diffraction in the gas phase. The donor—acceptor bonds, Ga—N and Ga P, for organogallium complexes are measured and the variation in geometry of the free ligands is discussed.关键词:tex...
What is the geometry of XeF_4? 1) tetrahedral 2) square planar 3) octahedral 4) seesaw 5) bent What is the molecular geometry and electron geometry of CH3OH? How many lone pairs of electrons does the central atom have? What is the electron geometry and molecular geometry ...
HG Ang,WL Kwik,GR Hanson,... - 《Journal of the Chemical Society Dalton Transactions》 被引量: 43发表: 1991年 加载更多研究点推荐 CH4-to-CH3OH monomeric Cu(II) sp tri-coordinated [(Al2O)CuIIO(OH)]-,T-shape geometry Mononuclear Cu(II) 站内活动 ...
To better understand the importance of quantum character of the processes that take place when hot carriers are generated and decay, from the very start we shall point to the difference between pulsed laser illumination which can achieve power densities on GW cm−2scales and the illumination with...
Light absorption near a surface of conductive materials and nanostructures leads to the excitation of nonequilibrium, high-energy charge carriers: electrons above the Fermi level or holes below it. When remaining inside a material, these so-called hot carriers result in nonlinear, Kerr-type, optical...
First, Harutyunyan et al.47 reported anomalous ultrafast dynamics of plasmonic hot electrons in hybrid metal/oxide NSs with hot spots when they varied the geometry and composition of the NS and the excitation wavelength. They showed a large ultrafast contribution to the excited electron decay signal...
Localized surface plasmon resonance (LSPR) of plasmonic nanoparticles and nanostructures has attracted wide attention because the nanoparticles exhibit a strong near-field enhancement through interaction with visible light, enabling subwavelength optics and sensing at the single-molecule level. The extremely ...
The latter model would imply a stronger excitonic interaction between the two Chl a molecules and predict a geometry similar to the primary donor in purple bacteria. The structure of P700 would support the latter model and it may be the smaller transition moments and the larger distance between ...
The observed results for N(CH 3 ) 3 are contrary to predictions based on commonly used intuitive arguments involving lone pairs, molecular geometry and hybridized orbitals. The present work is supportive of the view that CH 3 groups are intrinsically more electron attracting than H when bonded ...