• eobert f. curl,
• dobert f. curl,
• fobert f. curl,
• tobert f. curl,
• 5obert f. curl,
• 4obert f. curl,
• ribert f. curl,
• rkbert f. curl,
• rlbert f. curl,
• rpbert f. curl,
• r0bert f. curl,
• r9bert f. curl,
• rovert f. curl,
• ronert f. curl,
• rohert f. curl,
• rogert f. curl,
• robwrt f. curl,
• robsrt f. curl,
• robdrt f. curl,
• robrrt f. curl

The adjective form of "Robert F. Curl" would be "Curlian" or "Curlite," referring to something or someone related to or characteristic of Robert F. Curl.