CHICAGO  President-elect Barack Obama’s chief of staff, Rahm Emanuel, communicated with the office of Gov. Rod R. Blagojevich of Illinois about potential candidates for Mr. Obama’s Senate seat and provided a list of names, according to two Obama associates briefed on the matter.

The Obama associates said the interactions concerned several people who might fill the seat. Such contacts are common among party officials when a political vacancy is to be filled. It was not clear whether the communication was via direct telephone calls.

The Chicago Tribune reported that communications between Mr. Emanuel and the governor, both Democrats, had been captured on court-approved wiretaps, but Obama associates gave conflicting accounts of the interactions.

Obama aides have said privately that Mr. Emanuel did not engage in any deal-making with Mr. Blagojevich, whom federal prosecutors charged last week with conspiring to turn a profit from the appointment.