Gallery of Project 3 Structures, in order received.
J. Stecher
A. Wheeler
D. Ahmed
A. Jonsson
F. Hermandez
K. Borucki
S. Amiran
H. Ruiz
P. Winklebauer
D. Karcz
S. Tsai
J. McParland
R. Garg
A. Salamat
C. Malarkey
| Reference: Steffen, W.L., Chun, J.K., and Fay, R.C. Inorganic Chemistry, 17, 3498-3503 (1978). | |||
| Name = eta5-Cyclopentadienyltris(N,N-diemthyldithiocarbamato)titanium(IV) | |||
| Chemical Formula = [ Ti ( S2CN(CH3)2)3 (eta5-C5H5) ] | |||
| Metal = Ti | Ox.St. = +4 | C.N = ~7(?) | geometry = ~TBP(?) |
| Ligands = ONE cyclopentadienyl anion, C5H51-, and THREE bidentate N,N-dimethyldithiocarbamate (-1) anions | |||
| Titanium is bonded to six sulfur donor atoms and also to the cyclopentadienyl ring. The bond to the ring is perpendicular to the plane of the ring. Authors' description of C.N.=7 and geometry =~TBP involves some artist's license. The structure is unusual and is a much better example of the 18-electron rule than TBP geometry or C.N.=7. The structure also contains one benzene molecule per complex, present as a solvate. See (next row) for yourself. | |||
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| Reference: Zimmerman, G. F., and Sneddon, L. G. Inorganic Chemistry, 19, 3650-3655 (1980). | |||
| Name = | |||
| Chemica Formula = 4,5,6,8-(C6H5)4-1,4,5,7,8-(eta-C5H5)Co(C4B3H3) | |||
| Metal = Cobalt | Ox.St.=+1 | C.N.=~6 | geometry: a "sandwich" structure |
| Ligands = ONE cyclopentadienyl anion, C5H51-, and ONE polyhedral cluster composed of 4 C and 3 B atoms. | |||
| Contacts from cobalt to the 5 C atoms in the cyclopentadienyl anion ring are essentially the same (~2.05 Angstroms). Contacts from cobalt to 2 C and 3 B atoms of the cluster are also basically the same (2.03 - 2.13 Angstroms). The plane of these two sets of five atoms are almost parallel and equi-distant from the cobalt which lies between them; thus the "sandwich" designation. | |||
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| Reference: Bertrand, J.A., Fujita, E., Eller,, P.G., and VanDerveer, D.G. Inorganic Chemistry, 17, 3572-3574 (1978). | |||
| Name = Dichloro(1,3-dibenzoyl-2-azapropenato)(ethanol)iron(III) | |||
| Chemical Formula = [ Fe (C16H12NO2) Cl2 (C2H5OH) ] | |||
| Metal = Iron | Ox.St. = 3 | C.N. = 6 | geometry = ~Oh |
| Ligands = TWO Chloride anions (-1 each), ONE tridentate (1,3,-dibenzoyl-2-azapropene), and ONE ethanolate anion (-1). | |||
| The tridentate ligand occupies mer sites, and the two chloride anions are cis. One of the chloride anions is trans to the nitrogen of the tridentate ligand, so the ethanolate anion is trans to the remaining chloride anion. | |||
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| Reference: Ball, R.G., Hames, R.W., Legzdins, P. and Trotter, J.. Inorganic Chemistry, 19, 3626-3631 (1980). | |||
| Name = | |||
| Chemical Formula = [ (eta5-C5H5)2Cr2(NO) 3 (EtNBEt2) ] | |||
| Metal = Cr | Ox.St. = 0 | C.N. = 6 | geometry = ~Oh |
| Ligands = a dinuclear complex (two Cr atoms / molecule) with TWO terminal NO groups, ONE bridging NO group, TWO cyclopentadienyl rings, and ONE bridging diethylboron(ethyl-amine) group with bridging N. | |||
| Cyclopentadienyl rings are pi-bonded to each Cr atom. One nitrosyl group (NO) and the amine N are bonded to both Cr atoms (i.e., bridging), and each Cr is also bonded to a terminal nitrosyl group. | |||
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| Reference: Butcher, R.J. and Sinn, E. Inorganic Chemistry, 19, 3622-3626 (1980). | |||
| Name = | |||
| Chemical Formula = [ Fe ( NO ) ( S2CN { CH ( CH3 ) 2 } 2 ) 2 ] | |||
| Metal = Fe | Ox.St. = +3 | C.N. = 5 | geometry = Square-Based Pyramid |
| Ligands = TWO N,N-di-isopropyl-dithiocarbamido (-1 each) providing two sulfur donor atoms, for a total of four donor atoms. Plus a nitrosyl group. | |||
| The four sulfur donor atoms define an approximate square plane. The iron atom is slightly above this plane (in the direction of the Fe - N bond) and the Fe - N bond is perpendicular to this plane. The overall geometry of iron and the five donor atoms is that of a square-based pyramid. | |||
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| Reference: Huneke, J.T., Yamanouchi, K. and Enemark, J.H. Inorganic Chemistry, 17, 3695-3697 (1978). | |||
| Name = mu-(2-mercaptoethanolato-S,O)-mu-sulfido-bis(oxo(N,N-diethyldithiocarbamato)molybdenum(V) | |||
| Chemical Formula = [ Mo2 O2 S(SCH2CH2O)(S2CN(C2H5)2) 2 ] | |||
| Metal = Mo | Ox.St. = +5 | C.N. = 6 | geometry = approximate octahedron |
| Ligands = TWO N,N-di-ethyl-dithiocarbamido (-1 each) anions, ONE sulfide (-2) and TWO oxide (-2 each) anions, plus a S-CH2-CH2-O (-2) anion; provide donor atoms for 2 molybdenum atoms. | |||
| This is a dinuclear complex (TWO molybdenum centers per molecule). Each molybdenum is six-coordinate and has approximate octahedral geometry. Three of the six bonding sites involve bridging donor atoms from a sulfide anion and the S- and O- atoms of the 2-mercaptoethanolate anion. | |||
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| Reference: Cotton, F.A., Riess, J.G., Rice, C.E., and Stults, B.R. Inorganic Chemistry, 17, 3521-3525 (1978). | |||
| Name = closo-Tetraphosphorus Hexakis(methylimide) | |||
| Chemical Formula = P4(NCH3)6 | |||
| Metal = N/A | Ox.St. = N/A | C.N. = | geometry = |
| Ligands = | |||
| This is a tetranuclear complex (four phosphorus atom centers per molecule). The four phosphorus define a tetrahedron. The six nitrogens are bonded to pairs of phosphorus atoms with the P - N - P bonds aligned on the edges of the tetrahedron. | |||
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| Reference: Kistenmacher, T.J., Rossi, M., Chiang, C.C., Van Duyne, R.P., and Siedle, A.R. Inorganic Chemistry, 17, 3604-3608 (1978). | |||
| Name = Tetrathiafulvalene Trichloromercurate | |||
| Chemical Formula = { C6H4S4 }{ HgCl3 } | |||
| Metal = Hg | Ox.St. = +2 | C.N. = 4 | geometry = approximate tetrahedron |
| Ligands = FOUR chloride (-1 ) anions per mercury in a dinuclear unit.. | |||
| This is a dinuclear complex (TWO mercury centers per anion) involving two bridging- and four terminal-chloride anions. The cation is a ( +1) radical of tetrathiafulvalene. | |||
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| Reference: Kutal, C., Grutsch, P., Atwood, J.L., and Rogers, R.D. Inorganic Chemistry, 17, 3558-3562 (1978). | |||
| Name = Tris(methyldiphenylphosphine)(tetrahydroborato)copper(I) | |||
| Chemical Formula = [ Cu { ( P ( CH3 )(C6H5)2)}3 ( BH4) ] | |||
| Metal = Cu | Ox.St. = +1 | C.N. = 4 | geometry = approximate tetrahedron |
| Ligands = THREE neutral (methyldiphenyl)phosphino ligands, and ONE tetrahydroborate (-1) anion. | |||
| The structure has the unique feature of a hydrogen (from the tetrahydroborate anion) being bonded to the copper, i.e., the tetrahydroborate anion is attached to copper through a hydrogen bridge bond. The Cu to bonded-hydrogen distance is 1.47 Angstroms. The overall structure is approximately tetrahedral, but P - Cu - P bond angles are larger than expected for tetrahedral geometry due to steric repulsion of the phenyl groups. | |||
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| Reference: Dartiguenave, M., Dartiguenave, Y., Gleizes, A., Saint-Jolly, C., Galy, J., Meier, P., and Merbach, A.D. . Inorganic Chemistry, 17, 3503-3512 (1978). | |||
| Name = Bromotetrakis(trimethylphosphine)nickel(II) Tetrafluoroborate | |||
| Chemical Formula = [ Ni { ( P ( CH3 )3 )3 } ( Br ) ] BF4 | |||
| Metal = Ni | Ox.St. = +2 | C.N. = 5 | geometry = approximate trigonal bipyramid |
| Ligands = FOUR neutral trimethylphosphine and ONE bromide (-1) anion. | |||
| Bromide anion is bonded to the nickel at an equatorial site. The two remaining equatorial bonding sites, as well as the two axial bonding sites are occupied by trimethylphosphino ligands. | |||
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| Reference: Atwood, J.L., Rogers, R.D., Hunter, W.E., Floriani, C., Fachinetti, G., and Chiesi-villa, A.. Inorganic Chemistry, 19, 3812-3817 (1980). | |||
| Name = Dicarbonyl-bis(eta5-cyclopentadienyl)zirconium | |||
| Chemical Formula = [ Zri ( CO )2 ( C5 H 5 )2 ] | |||
| Metal = Zr | Ox.St. = +2 | C.N. = 4 | geometry = distorted Td |
| Ligands = TWO neutral carbonyl groups and TWO eta5-cyclopentadienyl rings (-1 each) | |||
| The C - Zr - C angle (where C = carbon atoms from carbonyl groups) is almost 90 degrees. The angle at Zr as defined by the centroids of the two rings is 143 degrees. The planes defined by these two angles are perpendicular. | |||
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| Reference: Cotton, F.A., Ilsley, W.H., and Kaim W. Inorganic Chemistry, 19, 3586-3589 (1980). | |||
| Name = tetrakis(N-phenylpivalamido)-di-molybdenum(II) | |||
| Chemical Formula = Mo2 [ PhN:-C(CMe3)-O: ]2 | |||
| Metal = Mo | Ox.St. = +2 | C.N. = 5 | geometry = square-based pyramid |
| Ligands = FOUR bidentate anionic ligands (-1 each), bonding to Mo through N and O atoms. Colons in the above chemical formula indicate donor atoms. | |||
| This dinuclear complex possesses a short metal - metal bond (2.07 Angstroms). The four ligands bridge the two Mo atoms resulting in a structure that reminds some of a "Star Wars" X fighter air ship. | |||
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| Reference: Pasquali, M., Floriani, C., Chiesi-Villa, A., and C. Guastini. Inorganic Chemistry, 19, 3847-3850 (1980). | |||
| Name = | |||
| Chemical Formula = [ {V ( C5H5 )2} ( COS2 ) ] | |||
| Metal = V | Ox.St. = +1 | C.N. = 3 and 4 | geometry = approximate tetrahedral and pyramidal |
| Ligands = TWO cyclopentadienyl anions (-1 each) and ONE carbonyl disulfide. | |||
| Both vanadium are pi-coordinated to two cyclopentadienyl anions. The carbonyl disulfide uses all three donor atoms; two sulfur chelate one V, and the other V is bridged through the oxygen. | |||
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| Reference: Pierpont, C.G., Francesconi, L.C., and D.H. Hendrichson.Inorganic Chemistry, 17, 3470-3477 (1978). | |||
| Name = 5,8-dihydroxy-1,4-naphthoquinone-bis-(diethylenetriamine)-dicopper(II) | |||
| Chemical Formula = [ Cu2 ( dien)2 (DHNQ) ] ( BPh4 )2 | |||
| Metal = Cu | Ox.St. = +2 | C.N. = 5 | geometry = approximate square-based pyramid |
| Ligands = TWO neutral dien (a tridentate ligand) and ONE DHNQ anion (-2 ) | |||
| The DHNQ ligand has four donor oxygen atoms. Two O are chelated to each copper and thereby also bridge the two copper atoms. Remaining sites on Cu are occupied by the tridentate dien ligand. | |||
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| Reference: Churchill, J. R., and Hollander, F. J..Inorganic Chemistry, 17, 3546-3552 (1978). | |||
| Name = | |||
| Chemical Formula = (mu-H)2Os3Re2(CO)20 | |||
| Metal = Os and Re | Ox.St. = | C.N. = 6 | geometry = approximate octahedron |
| Ligands = TWO hydride anions (not located in the Xray structure) and TWENTY carbonyl groups. | |||
| A polynuclear structure (5 metal atoms) and each has approximate octahedral geometry. The three osmium atoms are components in a tricyclic ring. | |||
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