Individual research under direct supervision of faculty member. Requires more extensive preparation than CHEM 397. Before advance registration, student must make formal application and receive approval of instructor and department. May be repeated for credit. No more than 1 total of CHEM 397 and CHEM 497 may be used to satisfy major requirement for chemistry and no more than four of these credits may be CHEM 397. Prerequisites: completion of any three of CHEM 221, 231, 341 and 351, with the fourth as a corequisite; demonstrated potential for independent study; and consent of instructor. Written report of work is required. Consult detailed guidelines in department office before advance registration.