R. D. Adams, D. M. Collins, and F. A. Cotton. Molecular Structures and Barriers to Internal Rotation in Bis(η5-cyclopentadienyl)hexacarbonylditungsten and Its Molybdenum Analog. Inorg. Chem. 1974, 13 (5): 1086–1090. doi:10.1021/ic50135a015.
Manning, A. R.; Hacket, Paul; Birdwhistell, Ralph. Hexacarbonylbis(η5‐Cyclopentadienyl)Dichromium, Molybdenum, and Tungsten and their Analogs, M2(η5‐C5H4R)2(CO)6 (M = Cr, Mo, and W; R = H, Me or PhCH2). Inorganic Syntheses. 1990, 28: 148–149. doi:10.1002/9780470132593.ch39.
Curtis, M. David; Hay, Michael S. Cyclopentadienyl Metal Carbonyl Dimers of Molybdenum and Tungsten. Inorganic Syntheses. 1990, 28: 150–152. doi:10.1002/9780470132593.ch40.
