Synonyms: 2,5-Norbornadienechromiumtetracarbonyl (6CI); Chromium, tetracarbonyl(2,5-norbornadiene)- (7CI,8CI);Bicyclo[2.2.1]hepta-2,5-diene, chromium complex;(Bicyclo[2.2.1]hepta-2,5-diene)tetracarbonylchromium;Bicyclo[2.2.1]heptadienetetracarbonylchromium; Norbornadienechromiumtetracarbonyl; Tetracarbonyl(2,5-norbornadiene)chromium; Tetracarbonyl(norbornadiene)chromium;Tetracarbonyl(norbornadiene)chromium(0); Tetracarbonyl(h4-norbornadiene)chromium;Tetracarbonylbis(norbornadiene)chromium