Transition metal-dialkyl compounds (LxMR2; R=alkyl; M=metals of groups VI–X)—Synthesis, structure, reactivity and applications

Alkenyl complexes of platinum group metals: a platform for diverse reactivity patterns

“…Metal‐alkyls, alkenyls and metallacycloalkanes are very well documented species among the classical organometallic compounds, and they play a vital role in many synthetic and catalytic reactions . Ever since the preparation of the first metal‐alkenyl complex reported by Green and Smith, valuable insights into the mechanistic details of these reactions have been elucidated, including both thermodynamic and kinetic aspects .…”

“…Ever since the preparation of the first metal‐alkenyl complex reported by Green and Smith, valuable insights into the mechanistic details of these reactions have been elucidated, including both thermodynamic and kinetic aspects . The chemistry of metal‐alkenyls has experienced a notable development during the last few years, in part due to their involvement in different catalytic processes and their applications in organic synthesis, some of which can be found in the currently available literature . M‐alkenyl complexes have been postulated as key intermediates in the Fischer–Tropsch process and ethylene oligomerization reactions including the generation of thin platinum films for micro‐electronic and catalytic applications through the chemical vapor deposition (CVD) method .…”

“…Although it might be anticipated that metal‐alkenyls should display similar properties to open‐chain dialkyl transition metal complexes or metallacycles, they exhibit high reactivity due to the involvement of an olefinic double bond. The chemical properties are rather different from other known metal complexes of substituted alkyl or aryl complexes . Since then, the chemistry of metal‐alkenyls of platinum group metals (PGM) has been a current research topic in our laboratories, and a review on the exciting chemistry of metal‐alkenyls would be worthwhile.…”

“…Metal-alkyls, alkenyls and metallacycloalkanes are very well documented species among the classical organometallic compounds, and they play a vital role in many synthetic and catalytic reactions. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Ever since the preparation of the first metal-alkenyl complex reported by Green and Smith, valuable insights into the mechanistic details of these reactions have been elucidated, including both thermodynamic and kinetic aspects. [17] The chemistry of metal-alkenyls has experienced a notable development during the last few years, in part due to their involvement in different catalytic processes and their applications in organic synthesis, some of which can be found in the currently available literature.…”

“…[17] The chemistry of metal-alkenyls has experienced a notable development during the last few years, in part due to their involvement in different catalytic processes and their applications in organic synthesis, some of which can be found in the currently available literature. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][18][19][20][21][22][23] M-alkenyl complexes have been postulated as key intermediates in the Fischer-Tropsch process [24] and ethylene oligomerization reactions [25] including the generation of thin platinum films [26] for micro-electronic and catalytic applications [27] through the chemical vapor deposition (CVD) method. [28] Various factors influencing reactivity and mechanism in the chemical vapor deposition of the late transition elements from organometallic precursors including metal-alkenyls were discussed extensively.…”