Figure 1 Similarity of H2 interactions with main-group and transition-metal compounds. 上图说的是H2和主族元素以及过渡金属反应的相似性。a中H2的p (HOMO) 和ArMMAr (M=Ge or Sn; Ar’=C6H3-2,6(C6H3-2,6-i-Pr2)2)的n1 (LUMO)前线轨道,这和b中H2与过渡金属M的d轨道反应是可以比较的。 文...
Transition MetalsLow-ValentHomogeneous CatalysisSmall molecule activationSince the latter quarter of the twentieth century, main group chemistry has undergone significant advances. Power's timely review in 2010 highlighted the inherent differences between the lighter and heavier main group elements, and that...
After group 12, elements become less and less like metals as they approach the noble gases in group 18. Transition Elements: Properties Many transition metals have similar properties, due to their similar locations on the table. These properties include: The ability to conduct heat and electricity...
After group 12, elements become less and less like metals as they approach the noble gases in group 18. Transition Elements: Properties Many transition metals have similar properties, due to their similar locations on the table. These properties include: The ability to conduct heat and electricity...
Current research efforts on single-atom catalysts (SACs) exclusively focus on nonmetal or transition-metal atoms as active centers, while employing main-group metal elements is seemingly excluded because their delocalized s/p-bands are prone to yield a broadened resonance for the interaction with adso...
ChemInform Abstract: Multiple Bonds Between Main Group Elements and Transition Metals. Part 56. Acid-Catalyzed Alkyne/Alkene Coupling at Re(III) Centersorgano‐rhenium compoundsThe alkyne complex (III) is a useful intermediate for organo-Re complexes and can be obtained from the tetrachloride (I) ...
. 137. Polymeric... Multiple bonds between main-group elements and transition metals. 137. Polymeric...Multiple bonds between main-group elements and transition metals. 137. Polymeric...Investigates a two-dimensional structural model of polymeric methyltrioxorhenium (MTO) established by means of ...
Multiple bonds between transition metals and main-group elements. 73. Synthetic routes to rhenium(V) alkyl and rhenium(VII) alkylidyne complexes. X-ray crystal structures of (.eta.5-C5Me5)Re(:O) (CH3)[CH2C(CH3)3] and (.eta.5-C5Me5)(Br)3R... Multiple bonds between transition ...
Different from a narrow d-band for transition metals, main group metals sites with a delocalized s/p-band as the host-orbital mainly broadens the adsorbate state due to “weak chemsorption”7,11. The interaction of adsorbates guest-states with those unbefitting surface-states results in too st...
Methyltrioxorhenium as catalyst for olefin metathesis “Multiple bonding between main-group elements and transition metals. 135. Oxorhenium(V) catalysts for the olefination of aldehydes” Organometallics 1994,13... WA Herrmann,W Wagner,UN Flessner,... 被引量: 22发表: 1991年 Multiple bonds ...