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US 4,046,790 AGranted
Catalytically active complex of titanium, cyclopentadienyl ligands, and ammonia
AssigneeAllied Chemical Corporation
InventorsJohn N. Armor, Guido P. Pez
Life of this patent
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Abstract
A catalytically active compound or complex from the complex "bis-titanocene" (U.S. Pat. No. 3,776,932 of Dec. 4, 1973 to G. P. Pez) by reaction thereof with ammonia at low temperature and in absence of contaminants, giving a characteristic powder x-ray diffraction pattern and characteristic radiation and e.s.r. spectra.
Claims4
Composition having the structural formula, when in crystalline form, ##STR3## where cp indicates a cyclopentadienyl ligand;
- said compound, being characterized by,
- 1. giving a powder x-ray diffraction pattern in which the twelve strongest lines show the following Bragg spacings in Angstrom units, paired with their relative intensities (I/I.sub.1):
- (9.5, 45);
- (7.0, 89);
- (5.74, 100);
- (5.50, 72);
- (5.20, 28);
- (4.79, 42);
- (4.27, 8);
- (4.02, 15);
- (3.91, 4);
- (3.71, 6);
- (3.38, 4);
- (2.69, 8).
- 2. giving in suspension in mineral oil, an infrared spectrum showing bands characteristic of compounds containing the (cp).sub.2 Ti moiety and unique characteristic bands at wave numbers of 1585, 1230, 910 and 430 cm.sup.-1 ;
- and
- 3. giving a solid state reflectance spectrum in the visible-near infrared region showing a broad band centered at wavelength of 495 .+-. 10 nm and additional bands at 1300, 1540, 1650 and 1860nm;
- and in benzene solution giving a visible-near infrared absorption spectrum showing a band at 495 nm and no intense bands between 800nm and 2,000nm.
15 more elements
Dependencies are inferred from the claim text.