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The solid addition compound (CH3)2CO, TiCl4 has been synthesized. The study of its vibrational infrared spectrum shows a characteristic lowering of the frequency ω = v(CO) in regard to that of acetone, viz. 87 cm−1. There exists, therefore, a dative bond between the oxygen and titanium atoms.
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Cassimatis et al. (1960) studied this question.
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