The crystal structure of π-cyclopentadienyl molybdenum tricarbonyl chloride π-C5H5Mo(CO)3Cl

Tricarbonylchlorido(η5-cyclopentadienyl)molybdenum(II)

“…The distance between the Mo atom and the C5, C6 and C7 atoms are observed to be shorter than those between Mo and C4 and C8 because of the electronic repulsion between the electronegative Cl atom and the cyclopentadienyl ring electrons. The molecular structure of the title compound (I) is a new polymorph and differ from the structures reported (Chaiwasie et al 1968;Churchill et al 1981;Albright et al 1978;Mays et al1968). For example, the cell dimensions reported by Chaiwasie et al (1968) is significantly different from our values (see crystal data).…”

“…The molecular structure of the title compound (I) is a new polymorph and differ from the structures reported (Chaiwasie et al 1968;Churchill et al 1981;Albright et al 1978;Mays et al1968). For example, the cell dimensions reported by Chaiwasie et al (1968) is significantly different from our values (see crystal data).…”

“…For related structures, see: Chaiwasie & Fenn (1968); Churchill & Bueno (1981); Albright et al (1978); Mays & Robb (1968). For applications of this class of compounds, see: Arzoumanian (1998); Freund et al (2006); Karunadasa et al (2010).…”

Synthese und Kristallstruktur von (Cyclopentadienyl)(dicarbonyl)(1,5-di-/Molyl-pentaazadienido)molybdän, (Cp)Mo(CO)2(tolN5tol)/ Synthesis and Crystal Structure of (Cyclopentadienyl)(dicarbonyl)(1,5-di-p-tolyl-pentaazadienido)molybdenum, (Cp)Mo(CO)2(tolN5tol)

“…Das tetragonal-pvramidale Koordinationspolyeder des Molybdäns im (Cp)Mo(CO) 3 Cl mit dem Cyclopentadienylliganden an der Spitze [7] …”

Synthesis and Resolution of Enantiomeric Organic Compounds of the Transition Elements

“…The cyclopentadienyltricarbonyl halides of the metals Mo and W3*46 have approximately square pyramidal structure with the cyclopentadienyl ring at the top of the pyramid. 47 In the reaction of these complexes with Schiff bases NN' of pyridine aldehyde(2) and primary amines one mole CO is substituted and at the same time the halogen ligand is displaced from the inner coordination sphere of the metal into the o~t e r .~~'~~ According to SCHEME 16 a cationic complex is formed with an asymmetric center at the metal atom. derived from S-( -)-a-phenyl ethyl amine is used, two diastereoisomers are formed that can be separated by fractional c r y s t a l l i z a t i~n .~~*~~ These complexes are the first examples of optically pure compounds with square pyramidal structure.…”