{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T11:47:52Z","timestamp":1761392872406},"reference-count":30,"publisher":"American Chemical Society (ACS)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Organometallics"],"published-print":{"date-parts":[[2001,6,1]]},"DOI":"10.1021\/om0008777","type":"journal-article","created":{"date-parts":[[2002,7,26]],"date-time":"2002-07-26T04:58:44Z","timestamp":1027659524000},"page":"2428-2430","source":"Crossref","is-referenced-by-count":59,"title":["Polymerization of Ethylene by the Electrophilic Heteroscorpionate-Containing Complexes [TiCl<sub>3<\/sub>(bdmpza)] and [TiCl<sub>2<\/sub>(bdmpza){O(CH<sub>2<\/sub>)<sub>4<\/sub>Cl}] (bdmpza = Bis(3,5-dimethylpyrazol-1-yl)acetate)"],"prefix":"10.1021","volume":"20","author":[{"given":"A.","family":"Otero","sequence":"first","affiliation":[]},{"given":"J.","family":"Fern\u00e1ndez-Baeza","sequence":"additional","affiliation":[]},{"given":"A.","family":"Anti\u00f1olo","sequence":"additional","affiliation":[]},{"given":"F.","family":"Carrillo-Hermosilla","sequence":"additional","affiliation":[]},{"given":"J.","family":"Tejeda","sequence":"additional","affiliation":[]},{"given":"E.","family":"D\u00edez-Barra","sequence":"additional","affiliation":[]},{"given":"A.","family":"Lara-Sanchez","sequence":"additional","affiliation":[]},{"given":"L.","family":"Sanchez-Barba","sequence":"additional","affiliation":[]},{"given":"I.","family":"L\u00f3pez-Solera","sequence":"additional","affiliation":[]},{"given":"M. R.","family":"Ribeiro","sequence":"additional","affiliation":[]},{"given":"J. M.","family":"Campos","sequence":"additional","affiliation":[]}],"member":"316","published-online":{"date-parts":[[2001,5,11]]},"reference":[{"key":"om0008777b00001\/om0008777b00001_1","unstructured":"Applied Homogeneous Catalysis with Organometallic Compounds; Cornils, B., Herrmann, W. A., Eds.; VCH:\u2009 Weinheim, Germany, 1996."},{"key":"om0008777b00002\/om0008777b00002_1","doi-asserted-by":"crossref","first-page":"5241","DOI":"10.1021\/ma960661+","volume":"29","author":"Scollard J. D.","year":"1996","journal-title":"J. Macromolecules"},{"key":"om0008777b00003\/om0008777b00003_1","doi-asserted-by":"crossref","first-page":"3097","DOI":"10.1039\/a703112b","author":"Sarsfiled M. J.","year":"1997","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"om0008777b00004\/om0008777b00004_1","doi-asserted-by":"crossref","first-page":"3537","DOI":"10.1039\/a907505d","author":"Otero A.","year":"1999","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"om0008777b00005\/om0008777b00005_1","doi-asserted-by":"crossref","DOI":"10.1142\/p148","volume-title":"The Coordination Chemistry of Polypyrazolylborate Ligands","author":"Trofimenko S.","year":"1999"},{"key":"om0008777b00007\/om0008777b00007_1","volume-title":"cm-1):\u2009 1705 \u03bdas(CO2-), 1464 \u03bds(CO2-), 360 \u03bd(Ti\u2212Cl). Mass spectrum (FAB (m\/z assignment, % intensity)):\u2009 364D [M \u2212 Cl], 25, 313D [M \u2212 2Cl \u2212 O], 100. Anal. Calcd for C12H15Cl3N4O2Ti:\u2009 C, 35.9","author":"Spectroscopic"},{"key":"om0008777b00008\/om0008777b00008_1","doi-asserted-by":"crossref","first-page":"2313","DOI":"10.1021\/ic50163a071","volume":"15","author":"Kouba J. K.","year":"1976","journal-title":"Inorg. Chem."},{"key":"om0008777b00008\/om0008777b00008_2","doi-asserted-by":"crossref","first-page":"840","DOI":"10.1021\/ic00132a077","volume":"21","author":"Reger D. L.","year":"1982","journal-title":"Inorg. Chem."},{"key":"om0008777b00008\/om0008777b00008_3","doi-asserted-by":"crossref","first-page":"1064","DOI":"10.1021\/ic00149a011","volume":"22","author":"Reger D. L.","year":"1983","journal-title":"Inorg. Chem."},{"key":"om0008777b00008\/om0008777b00008_4","doi-asserted-by":"crossref","first-page":"1763","DOI":"10.1021\/om50006a011","volume":"12","author":"Reger D. L.","year":"1983","journal-title":"Organometallics"},{"key":"om0008777b00008\/om0008777b00008_5","doi-asserted-by":"crossref","first-page":"1835","DOI":"10.1039\/dt9910001835","author":"Kresinski R. A.","year":"1991","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"om0008777b00008\/om0008777b00008_6","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1016\/S0022-328X(98)01015-8","volume":"577","author":"Anti\u00f1olo A.","year":"1999","journal-title":"J. Organomet. Chem."},{"key":"om0008777b00009\/om0008777b00009_1","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1021\/ic9610703","volume":"36","author":"Selected","year":"1997","journal-title":"J. Inorg. Chem."},{"key":"om0008777b00010\/om0008777b00010_1","unstructured":"Preparation of2:\u2009 a solution of [TiCl3(bdmpza)] (1; 0.500 g, 1.24 mmol) in THF (50 mL) was refluxed for 8 h. The solution was concentrated under vacuum and, after extraction with dicholoromethane (40 mL) and evaporation of the solvent, a yellow solid (yield 93%) was isolated. Spectroscopic data for2are as follows.1H NMR (300 MHz, CDCl3):\u2009 \u03b4 6.59 (s, 1 H, CH), 6.07 (s, 2 H, H4), 2.72 (s, 3 H, Me3), 2.57 (s, 3 H, Me3\u2018), 2.45 (s, 6 H, Me5,5\u2018), 4.92 (m, 2H, Ha), 2.07 (m, 4H, Hb,c), 3.67 (t, 2H, Hd).13C{1H} NMR (CDCl3):\u2009 \u03b4 66.5 (CH), 154.7, 153.3, 141.4, 140.5 (C3\u2009\u2009or\u20093\u2018\u2009or\u20095\u2009or\u20095\u2018), 108.6, 108.0 (C4\u2009\u2009or\u20094\u2018), 15.2, 14.8 (Me3,3\u2018), 11.1, 10.1 (Me5,5\u2018), 163.4 (CO2-), 86.2 (Ca), 28.8 (Cb), 28.9(Cc), 44.6 (Cd). IR (Nujol mull, cm-1):\u2009 1699 \u03bdas(CO2-), 1459 \u03bds(CO2-), 376 \u03bd(Ti\u2212Cl). Mass spectrum (FAB (m\/zassignment, % intensity)):\u2009 437D [M \u2212 Cl], 28. Anal. Calcd for C16H23Cl3N4O3Ti:\u2009 C, 40.6; H, 4.9; N, 11.8. Found:\u2009 C, 40.8; H, 4.7; N, 11.6."},{"key":"om0008777b00011\/om0008777b00011_1","doi-asserted-by":"crossref","first-page":"2556","DOI":"10.1021\/om00155a017","volume":"6","author":"Selected","year":"1987","journal-title":"Organometallics"},{"key":"om0008777b00012\/om0008777b00012_1","unstructured":"Preparation of3:\u2009 a solution of [TiCl3(bdmpza)] (1; 0.500 g, 1.24 mmol) in THF (50 mL) was stirred at 35 \u00b0C for 24 h. The solution was concentrated under vacuum and, after extraction with dicholoromethane (40 mL) and evaporation of the solvent, a orange solid (yield 89%) was isolated. Spectroscopic data for3are as follows.1H NMR (300 MHz, CDCl3):\u2009 \u03b4 7.36 (s, 1 H, CH), 6.45 (s, 1 H, H4), 6.41 (s, 1 H, H4\u2018), 2.97 (s, 3 H, Me3), 2.87 (s, 3 H, Me3\u2018), 2.87 (s, 3 H, Me5), 2.86 (s, 3 H, Me5\u2018), 3.95 (m, 4H, THF), 2.10 (m, 4H, THF).13C{1H} NMR (CDCl3):\u2009 \u03b4 67.6 (CH), 154.9, 153.7, 143.0, 142.9 (C3\u2009or\u20093\u2018\u2009or\u20095\u2009or\u20095\u2018), 108.6, 108.3 (C4\u2009or\u20094\u2018), 15.4, 14.9 (Me3,3\u2018), 10.8, 10.7 (Me5,5\u2018), 163.2 (CO2-), 68.1, 26.2 (THF). IR (Nujol mull, cm-1):\u2009 1650 \u03bdas(CO2-), 1459 \u03bds(CO2-), 376 \u03bd(Ti\u2212Cl). Mass spectrum (FAB (m\/zassignment, % intensity)):\u2009 437D [M], 100, 364D [M \u2212 THF], 40. Anal. Calcd for C16H23Cl3N4O3Ti:\u2009 C, 40.6; H, 4.9; N, 11.8. Found:\u2009 C, 40.2; H, 4.5; N, 12.1."},{"key":"om0008777b00013\/om0008777b00013_1","doi-asserted-by":"crossref","first-page":"4111","DOI":"10.1021\/ja00247a046","volume":"109","author":"Jordan R. F.","year":"1987","journal-title":"J. Am. Chem. Soc."},{"key":"om0008777b00013\/om0008777b00013_2","doi-asserted-by":"crossref","first-page":"1268","DOI":"10.1021\/om00051a012","volume":"10","author":"Borkowsky S. L.","year":"1991","journal-title":"Organometallics"},{"key":"om0008777b00014\/om0008777b00014_1","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1039\/dt9930000135","author":"Mair F. S.","year":"1993","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"om0008777b00014\/om0008777b00014_2","doi-asserted-by":"crossref","first-page":"37","DOI":"10.1016\/0022-328X(94)87183-3","volume":"484","author":"Campello M. P. C.","year":"1994","journal-title":"J. Organomet. Chem."},{"key":"om0008777b00014\/om0008777b00014_3","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1021\/om00013a026","volume":"13","author":"Mullica D. F.","year":"1994","journal-title":"Organometallics"},{"key":"om0008777b00014\/om0008777b00014_4","doi-asserted-by":"crossref","first-page":"537","DOI":"10.1021\/ic9505211","volume":"35","author":"Avens L. R.","year":"1996","journal-title":"Inorg. Chem."},{"key":"om0008777b00014\/om0008777b00014_5","doi-asserted-by":"crossref","first-page":"5138","DOI":"10.1021\/ic970647t","volume":"36","author":"Peymann T.","year":"1997","journal-title":"Inorg. Chem."},{"key":"om0008777b00014\/om0008777b00014_6","doi-asserted-by":"crossref","first-page":"2839","DOI":"10.1039\/a803702g","author":"Batten S. A.","year":"1998","journal-title":"J. Chem. Soc., Dalton Trans."},{"key":"om0008777b00015\/om0008777b00015_1","volume-title":"P21\/c, a = 7.987(1) \u00c5, b = 16.209(1) \u00c5, c = 16.996(1) \u00c5","author":"Crystal"},{"key":"om0008777b00017\/om0008777b00017_1","volume-title":"Ethylene polymerizations were carried out in a 1.0 dm3 B\u00fcchi autoclave with magnetic stirring. Toluene was used as the solvent","author":"Polymerization"},{"key":"om0008777b00018\/om0008777b00018_1","first-page":"4169","author":"Cp C","year":"1996","journal-title":"J. Polym. Mater. Encycl."},{"key":"om0008777b00019\/om0008777b00019_1","doi-asserted-by":"crossref","first-page":"41","DOI":"10.1016\/0304-5102(93)E0290-W","volume":"89","author":"Conti G.","year":"1994","journal-title":"J. Mol. Catal."},{"key":"om0008777b00020\/om0008777b00020_1","doi-asserted-by":"crossref","first-page":"3408","DOI":"10.1021\/om980222u","volume":"17","author":"Doherty S.","year":"1998","journal-title":"J. Organometallics"},{"key":"om0008777b00021\/om0008777b00021_1","doi-asserted-by":"crossref","first-page":"2152","DOI":"10.1021\/om980106r","volume":"17","author":"Nomura K.","year":"1998","journal-title":"Organometallics"}],"container-title":["Organometallics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/pubs.acs.org\/doi\/pdf\/10.1021\/om0008777","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,9,22]],"date-time":"2021-09-22T13:10:31Z","timestamp":1632316231000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.acs.org\/doi\/10.1021\/om0008777"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,5,11]]},"references-count":30,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2001,6,1]]}},"alternative-id":["10.1021\/om0008777"],"URL":"https:\/\/doi.org\/10.1021\/om0008777","relation":{},"ISSN":["0276-7333","1520-6041"],"issn-type":[{"value":"0276-7333","type":"print"},{"value":"1520-6041","type":"electronic"}],"subject":[],"published":{"date-parts":[[2001,5,11]]}}}