Transfer-Type Intercalation Compounds FeOCl Pyridine derivative

Herein are described the preparations of the charge-transfer-type intercalation compound FeOCl (pyridine derivative), of grafted-type intercalation compounds FeO(OCH3) and Fe0(02C2H4)1/2 and of some organic intercalates of HTiNbOs. 

FeOCl + 1 In (pyridine derivative)---- FeOCl (pyridine derivative),  

Iron (III) chloride oxide is prepared by sealing a mixture of 100 mg a-Fe203 (0.63 mmole) and 220 mg FeCl3 (1.36 mmole) in a Pyrex glass tube 20 cm long 

Iron (III) chloride oxide (100 mg) is introduced into a Pyrex tube = 10 cm long, 0.8 cm in diameter, 2.0 mm wall thickness, which has been sealed at one end. To this is added 4 mL of reagent-grade pyridine (Py) or 2,4,6-trimethylpy-ridine (TMPy) which has been previoulsy dried over 3A molecular sieves. The tube is sealed and heated at 100° for 1 week then the black product is collected by filtration and washed several times with dry acetone.2 (To prepare the Apy derivative 4 mL of a 1 M acetone solution of APy, dried as above, is used and the reaction temperature is maintained at 40°). 

The d values corresponding to the interlayer distances are 7.92 A for FeOCl, and 13.27(P), l3.57(APy), and 11.9(TMPy), for the intercalated FeOCl. Iron(III) oxide chloride is a semiconductor with a resistivity of 107 fl-cm at room temperature. The intercalated complexes are still semiconductive but exhibit improved electrical conductivities along their c axes. The electrical resistivities at room temperature are 10, 103, and 103 fl-cm, respectively, for Py, APy, and TMPy intercalated FeOCl. 

CHARGE-TRANSFER-TYPE INTERCALATION COMPOUNDS FeOCl(PYRlDINE DERIVATIVE),/  

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