Personal liability of recipient of property; effect of transfer of property to bona fide purchaser, etc

If the estate taxes imposed by this subchapter are not paid when due, then the spouse, transferee, trustee, surviving tenant, person in possession of the property by reason of the exercise, nonexercise, or release of a power of appointment, or beneficiary, who receives, or has on the date of the decedent’s death property included in the federal gross estate to the extent of the value, at the time of the decedent’s death, of such property, shall be personally liable for such tax. Any part of such property transferred by, or transferred by a transferee of, such spouse, transferee, trustee, surviving tenant, person in possession of property by reason of the exercise, nonexercise, or release of a power of appointment, or beneficiary, to a bona fide purchaser, mortgagee, or pledgee for an adequate and full consideration in money or money’s worth shall be divested of the lien provided by law and a like lien shall then attach to all the property of such spouse, transferee, trustee, surviving tenant, person in possession, beneficiary, or transferee of any such person, except any part transferred to a bona fide purchaser, mortgagee, or pledgee for an adequate and full consideration in money or money’s worth. (