双环辛四烯合锕系元素

双环辛四烯合锕系元素是一类有机锕系元素化合物（英语：Organoactinide chemistry），包含以锕系元素为中心的茂金属。它们通常呈夹心结构，里面有两个环辛四烯基配体（COT2-，即C 8H2− 8）与4价锕系元素（An）中心结合，因此通式为An(C8H8)2。 其中得到最多研究的化合物是双环辛四烯合铀（U(C8H8)2）。它于1968年合成，是该系列中第一个得到合成的成员，至今仍被视为原型。该系列中其他得到合成的成员为双环辛四烯合镤（Pa(C8H8)2）、双环辛四烯合钍（Th(C8H8)2）、双环辛四烯合镎（Np(C8H8)2）和双环辛四烯钚（Pu(C8H8)2）。由于双环辛四烯合镎和双环辛四烯合钚的辐射危害可以很严重，它们自1980年代以来就没有得到广泛的实验研究。 镧系元素（M(C8H8)2，M = Nd、Tb和Yb）也存在类似的夹心化合物，但其中键合主要是离子键而不是共价键（参见双环辛四烯合镧系元素）。 有机锕系元素化学 Minasian, Stefan G.; Keith, Jason M. New evidence for 5f covalency in actinocenes determined from carbon K-edge XAS and electronic structure theory. Chem. Sci. 2014, 5 (1): 351–359 [2022-12-01]. doi:10.1039/C3SC52030G. （原始内容存档于2022-12-01）.  Greenwood, Norman N.; Earnshaw, Alan. Chemistry of the Elements. Butterworth-Heinemann. 1997: 1278–1280. ISBN 978-0-08-037941-8.  Seyferth, D. Uranocene. The First Member of a New Class of Organometallic Derivatives of the f Elements. Organometallics. 2004, 23 (15): 3562–3583. doi:10.1021/om0400705 .  Goffart, J.; Fuger, J.; Brown, D.; Duyckaerts, G. On the cyclooctatetraenyl compounds of actinide elements part II. Bis-(cyclooctatetraenyl) protactinium(IV). Inorganic and Nuclear Chemistry Letters. 1974-05-01, 10 (5): 413–419. ISSN 0020-1650. doi:10.1016/0020-1650(74)80119-4 （英语）.  Avdeef, Alex; Raymond, Kenneth N.; Hodgson, Keith O.; Zalkin, Allan. Two isostructural actinide .pi. complexes. Crystal and molecular structure of bis(cyclooctatetraenyl)uranium(IV), U(C8H8)2, and bis(cyclooctatetraenyl)thorium(IV), Th(C8H8)2. Inorganic Chemistry. 1972-05-01, 11 (5): 1083–1088. ISSN 0020-1669. doi:10.1021/ic50111a034.  De Ridder, D. J. A.; Rebizant, J.; Apostolidis, C.; Kanellakopulos, B.; Dornberger, E. Bis(cyclooctatetraenyl)neptunium(IV). Acta Crystallographica Section C: Crystal Structure Communications. 1996-03-15, 52 (3): 597–600 [2022-12-01]. ISSN 0108-2701. doi:10.1107/S0108270195013047. （原始内容存档于2022-12-01） （英语）.  Windorff, Cory J.; Sperling, Joseph M.; Albrecht-Schönzart, Thomas E.; Bai, Zhuanling; Evans, William J.; Gaiser, Alyssa N.; Gaunt, Andrew J.; Goodwin, Conrad A. P.; Hobart, David E.; Huffman, Zachary K.; Huh, Daniel N. A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes. Inorganic Chemistry. 2020-09-21, 59 (18): 13301–13314 [2022-12-01]. ISSN 0020-1669. OSTI 1680020. PMID 32910649. S2CID 221623763. doi:10.1021/acs.inorgchem.0c01671. （原始内容存档于2022-12-01） （英语）.  Apostolidis, Christos; Walter, Olaf; Vogt, Jochen; Liebing, Phil; Maron, Laurent; Edelmann, Frank T. A Structurally Characterized Organometallic Plutonium(IV) Complex. Angewandte Chemie International Edition. 2017-04-24, 56 (18): 5066–5070. PMC 5485009 . PMID 28371148. doi:10.1002/anie.201701858 （英语）.  Windorff, Cory J.; Sperling, Joseph M.; Albrecht-Schönzart, Thomas E.; Bai, Zhuanling; Evans, William J.; Gaiser, Alyssa N.; Gaunt, Andrew J.; Goodwin, Conrad A. P.; Hobart, David E.; Huffman, Zachary K.; Huh, Daniel N. A Single Small-Scale Plutonium Redox Reaction System Yields Three Crystallographically-Characterizable Organoplutonium Complexes. Inorganic Chemistry. 2020-09-21, 59 (18): 13301–13314 [2022-12-01]. ISSN 0020-1669. OSTI 1680020. PMID 32910649. S2CID 221623763. doi:10.1021/acs.inorgchem.0c01671. （原始内容存档于2022-12-01） （英语）.  Apostolidis, Christos; Walter, Olaf; Vogt, Jochen; Liebing, Phil; Maron, Laurent; Edelmann, Frank T. A Structurally Characterized Organometallic Plutonium(IV) Complex. Angewandte Chemie International Edition. 2017-04-24, 56 (18): 5066–5070. PMC 5485009 . PMID 28371148. doi:10.1002/anie.201701858 （英语）.