2004
DOI: 10.1002/ejic.200400310
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18‐Crown‐6 and Titanium Tetrafluoride − Preparation of the TiIV Fluoride Crown Ether Complexes (TiF4)2(18‐Crown‐6) and the Stabilization of cis‐TiF4(H2O)2 in [{cis‐TiF4(H2O)2}2(18‐Crown‐6)]

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Cited by 21 publications
(12 citation statements)
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“…6). 57 Addition of a stoichiometric amount of water to the MeCN solution displaces the crown to form [{cis-TiF 4 (H 2 O) 2 } 2 -(18-crown-6)] which has cis-TiF 4 (H 2 O) 2 units hydrogen bonded to the 18-crown-6. 57 In contrast, 15-crown-5 produces [TiF 2 -(15-crown-5)][Ti 4 F 18 ].…”
Section: Groupmentioning
confidence: 99%
“…6). 57 Addition of a stoichiometric amount of water to the MeCN solution displaces the crown to form [{cis-TiF 4 (H 2 O) 2 } 2 -(18-crown-6)] which has cis-TiF 4 (H 2 O) 2 units hydrogen bonded to the 18-crown-6. 57 In contrast, 15-crown-5 produces [TiF 2 -(15-crown-5)][Ti 4 F 18 ].…”
Section: Groupmentioning
confidence: 99%
“…[5][6][7][8][9] . The latter include cis-[TiF 4 (Ph 3 PO) 2 ], 10 cis-[TiF 4 (dmso) 2 ], 11 [{TiF 4 } 2 (18crown-6)], 12 [{TiF 4 (PhCN)} 3 ], 13 [TiF 4 (MeCN) 2 ], 13 a series of Nheterocyclic carbene (NHC) adducts, 14 and a range of cationic species [TiF 3 (MeCN) 3 ] + and [TiF 2 (crown)] 2+ (crown = 15-crown-5 or 18-crown-6), obtained using SbF 5 for fluoride abstraction. 15 Organotitanium fluorides have attracted much interest in their own right and as catalyst precursors for olefin polymerisation and enantioselective synthesis.…”
Section: Introductionmentioning
confidence: 99%
“…[6] The related [Ti 2 F 9 ] À ion was claimed to exist in solution, [7] and the salts M[Ti 2 F 9 ] (M = Cs, NF 4 ) have been reported, [8] although their X-ray crystal structures were not determined. We predict, on the basis of estimates of the corresponding energetics, that all monocation salts, with the possible exception of those having small cations, favor [Ti 2 [16] This difference may be because [18]crown-6…”
mentioning
confidence: 99%