Structure of the flyover complex Fe2(C4H4CO)(CO)6, which has idealized C2-symmetry.
In organometallic chemistry, a flyover complex features two metals bridged by the fragment OC(RC=CR)2. Some flyover complexes are symmetrical and some are not.
Structure of an asymmetrical flyover complex (C5H5)2Fe2[(CCF3)4CO]CO. The Fe-Fe bond length is 258.8 picometers.[1]
Common examples are the iron carbonyl derivatives, which are typically air-stable, soluble in nonpolar solvents, and red-orange in color.[2] These diiron complexes arise by the reaction of alkynes with iron carbonyls. Such reactions are known to generate many products, e.g. complexes of cyclopentadienones and para-quinones.[3]
Some ferrole complexes react with tertiary phosphines to give the substituted flyover complex Fe2(CO)5(PR3)(C4R4CO). They insert alkynes en route to tropones (R6C7O).[4][5]
^Davidson, John L.; Green, Michael; Stone, F. Gordon A.; Welch, Alan J. (1976). "Insertion Reactions of Hexafluorobut-2-yne, Tetrafluoroethylene, and Hexafluoroacetone with η5-Cyclopentadienyl-Iron, -Ruthenium, -Palladium, and -Molybdenum Complexes; Molecular and Crystal Structures of [Fe2(CO){C4(CF3)4CO}(η5-C5H5)2] and [Fe{COCF2C5H5}(η5-C5H5)]". J. Chem. Soc., Dalton Trans. (20): 2044–2053. doi:10.1039/dt9760002044.
^Fehlhammer, W.P.; Stolzenberg, H. (1982). "Dinuclear Iron Compounds with Hydrocarbon Ligands". In Geoffrey Wilkinson; F. Gordon A. Stone; Edward W. Abel (eds.). Comprehensive Organometallic Chemistry. pp. 513–613. doi:10.1016/B978-008046518-0.00051-9. ISBN 9780080465180.
^Piero Pino; Irving Wender, eds. (1968). Organic Syntheses via Metal Carbonyls Volume 1. NY: Wiley Interscience.
^Giordano, Roberto; Sappa, Enrico; Cauzzi, Daniele; Predieri, Giovanni; Tiripicchio, Antonio (1996). "Reactions of the 'Ferrole' Complex [Fe2(CO)6(C2Et2)2] with Group 15 Donor Ligands and with Alkynes. Stepwise Formation and Disengagement of Tropones. Crystal and Molecular Structure of [Fe2(CO)5{(CEt)2CO(CEt)2CHCPh}]". Journal of Organometallic Chemistry. 511 (1–2): 263–271. doi:10.1016/0022-328X(95)05936-J.
^Fagan, Paul J. (1995). "Dinuclear Iron Compounds with Hydrocarbon Ligands". Comprehensive Organometallic Chemistry II. pp. 231–258. doi:10.1016/B978-008046519-7.00058-7. ISBN 9780080465197.
organometallic chemistry, a flyovercomplex features two metals bridged by the fragment OC(RC=CR)2. Some flyovercomplexes are symmetrical and some are...
Anna Flyover, also known as Gemini Flyover, is a dual-armed grade separator in the central business district of Chennai, India. Built in 1973, it is the...
The Kanakadurga Flyover (also known as Durga Temple Flyover) is a Flyover Spanning the Krishna River and Prakasam Barrage in Vijayawada, India. It is...
of BKC in the inside area started operation of a new flyover. It is called Chunabhatti-BKC flyover or just simply BKC Connector as it connects with the...
Batanagar Flyover (Bengali: বাটানগর উড়ালপুল; also known as Sampriti Flyover) is a flyover in the southern suburbs of Kolkata. The two-lane flyover is 7.5 km...
Since the 1960s, the western end of Hotwells has been dominated by a flyovercomplex, which enables traffic from the city centre and the A4 Portway to cross...
"Is this the world's craziest road? - CBBC Newsround". Retrieved 2021-01-29. "Fancy navigating this flyover?". BBC News. Retrieved 2021-01-29. v t e...
and a project to construct a 16-lane expressway is also in progress. A flyover between Cyber City and MG Road was opened in 2015 to reduce traffic congestion...
Some ferroles react with tertiary phosphines to give the substituted flyovercomplex Fe2(CO)5(PR3)(C4R4CO). Dettlaf, Gerd; Weiss, Erwin (1976). "Kristallstruktur...
600,000 cars. In addition, more than 36 flyovers are in the pipeline. The city's first flyover is the Anna Flyover at the Gemini Circle built in 1973, which...
flyover has two twin steel girders. Some spans of this flyover are placed across the existing Gachibowli Crossroad Flyover. The 2.81-km long flyover at...
The Chrompet Flyover is an elevated rotary type interchange flyover that connects GST road (NH 45) with the Madras Institute of Technology gate in Chennai...
(CCP Complex) and Star City. It then intersects with Gil Puyat Avenue and Jose W. Diokno Boulevard, where it ascends through the Gil Puyat Flyover. It...
network. Major projects, such as the construction of metro rail systems, flyovers, and dedicated bus lanes, are underway to alleviate the traffic burden...
was kept, including small windows on the wall that would have faced this flyover. Borowiecka said "The motorway would have been 60ft up in the air, so I...
over 12 traffic intersections. A railway flyover is under construction near Tidel Park. Peelamedu RS Flyover was opened in 2016 to avoid traffic congestion...
district of shopping complexes, the Golden Triangle, is located within the ring road. Jalan Kinabalu Flyover was the first flyover in Malaysia built since...
Road, Anna Salai and Mount-Poonamallee Road. Kathipara flyover is the largest cloverleaf flyover in India as well as South Asia. The junction used to be...
"Emplacement of Himalayan leucogranites by magma injection along giant sill complexes: examples from the Cho Oyu, Gyachung Kang and Everest leucogranites (Nepal...
February 2021. Retrieved 23 February 2021. "Coimbatore city getting ready for flyover works". The Hindu. Retrieved 14 April 2021. "Efforts needed to improve...
Retrieved 23 June 2021. "Harcourt Road Flyover opens on Tuesday". South China Morning Post. 16 April 1966. p. 6. "Flyover To Garden Road Open To Traffic Tomorrow"...
Velachery twin flyovers is a set of two L-shaped flyovers at the Vijayanagar Junction in the neighbourhood of Velachery in Chennai, India. It was constructed...
Masoom Shah Road This flyover is grade separated and it is first level II flyover of Punjab province of Pakistan. There is complex of roads on ground level...
Tanjung Puteri bridge (the new Causeway replacement bridge) as well as flyovers from a new highway (Johor Bahru Eastern Dispersal Link Expressway) and...
The Kampala Flyover Road Project, also Kampala Flyover Project, is a road-improvement project in the Central Division of Kampala, the capital city of Uganda...
Global Information
