Draw the structure for each of the following organometallic complexes and show that the complex satisfies...
Draw the structure for each of the following organometallic complexes and show that the complex satisfies the 18-electron rule.
a. [( ?6 -C6H6)Mo(CO)3]
b. [MnBr(CO)5]
c. [RhCl(H)2(?2 -C2H4)(PPh3)2]
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Draw the structure for each of the following organometallic
complexes and show that the complex satisfies...
, determine the formal oxidation state of the transition metal and the corresponding number of d electrons. State whether each one is likely to be stable enough to be characterized.
Q1) For each of the following compounds, determine the formal oxidation state of the transition metal and the corresponding number of d electrons. State whether each one is likely to be stable enough to be characterized. (1) [Re(CO)5] (2) [HFe(CO)4]- (3) ((ŋ6-C5H5)2Fe) (4) ((ŋ6-C6H6)2Cr) (5) ((ŋ5-C5H5)ZrCl(OCH3) (6) (IrCl(PPh3)3) (7) (Mo(CO)3(PPh3)3) (8) (Fe(CO)4(C2H4)) (9) (W(CO)5Cl)- (10) Ni(CO)4)Q2) Use the 18-electron rule to predict the number of carbonyl ligands, n, in each of the following complexes: (1) [Cr(CO)n] (2) [Fe(CO)n(PPh3)2)] (3) [Mo(CO)n(PMe3)3] ...
4. A low oxidation state organometallic complex contains -acceptor ligands and the metal center tends to...
4. A low oxidation state organometallic complex contains -acceptor ligands and the metal center tends to acquire 18 electrons in its valence shell, thus filling the valence orbitals. This is known as the 18-electron rule. Show that Mo(CO)6 obeys the 18-electron rule.
In 1984, the first organometallic compounds with H2 as an ?2 ligand were synthesized: M(CO)3(PR3)2(H2) with...
In 1984, the first organometallic compounds with H2 as an ?2 ligand were synthesized: M(CO)3(PR3)2(H2) with M = Mo or W and R = cyclohexyl or isopropyl. These complexes illustrate back-bonding with H2 as a ligand. a. Draw a structure for this molecule (just use R for the substituents on the P atoms). Because the R groups are very bulky, assume that the two PR3 ligands are in a trans configuration. Only one isomer is then possible. Show that this...
2. For each of the following compounds, 1) write the formal oxidation state of the transition...
2. For each of the following compounds, 1) write the formal oxidation state of the transition metal and 2) the corresponding number of d electrons. 3) State whether or not each one is likely to be stable enough to be characterized. (a) [Re(CO)5] (b) [Cr(η6 -C6H6)2] (c) [Mo(CO)3(PPh3)3] (d) [Fe(η2 -C2H4)(CO)4] (e) [Zr(η5 -C5H5)Cl(OH)] (f) [Co(η5 -C5H5)2] 3. Identify the first-row transition metal (M) that follows the 18-electron rule for each of the following compounds (show how you arrived at...
2. For each of the following compounds, 1) write the formal oxidation state of the transition met...
2. For each of the following compounds, 1) write the formal oxidation state of the transition metal and 2) the corresponding number of d electrons. 3) State whether or not each one is likely to be stable enough to be characterized. (a) [Re(CO)5] (b) [Cr(η6 -C6H6)2] (c) [Mo(CO)3(PPh3)3] (d) [Fe(η2 -C2H4)(CO)4] (e) [Zr(η5 -C5H5)Cl(OH)] (f) [Co(η5 -C5H5)2] 3. Identify the first-row transition metal (M) that follows the 18-electron rule for each of the following compounds (show how you arrived at...
For each of the following complexes draw the structure, determine the electron count at the metal...
For each of the following complexes draw the structure, determine the electron count at the metal centre (use the neutral ligand method) and give the oxidation state of the metal (0) [Tan-CsHs)-(CH3)3] (11) [Ni(n-C3Hs)(PPh3>(CO)2] (111) [Mn(n-CHS)(CO)3]* [Ru(PMe3)2(CHPh)C12] (v) [Co(H2-COXCO);}2 Assume a direct Co-Co bond in (v) Explain, using suitable diagrams, the Berry pseudorotation mechanism
For each of the complexes, draw the structure and determine whether or not they obey the 18- electron rule. (1) (11) (1...
For each of the complexes, draw the structure and determine whether or not they obey the 18- electron rule. (1) (11) (111) (CpzCo] [Fe(n-C3Hs)(PMe3)2(CO)2]* [Fe(n'-C:Hs)(PMe3)2(THF)] CpRh(u2-H)2(CO)]2 [Mnz(CO)..] (v)
3 What spin only magnetic moment (uso) expected for each of the following complexes. (a) [MnBr.]...
3 What spin only magnetic moment (uso) expected for each of the following complexes. (a) [MnBr.] (C) [V(H2O)]2+ (b) [Ni(H20)]2+ (e) [CoBraj? (d) [FeC16] (f) Mo(CO)6
1. Consider the following 4-coordinate complexes. For each of these: a. Do you expect the complex...
1. Consider the following 4-coordinate complexes. For each of these: a. Do you expect the complex to be tetrahedral or square planar? Why? b. Draw an electron-orbital occupancy diagram for the d orbitals. c. If the complex is tetrahedral, calculate an LFSE in units of 4. Note that, for tetrahedral complexes, e orbitals are -3/54 relative to the average d-orbital energy, and t, orbitals are +2/54 relative to the average d-orbital energy. Ni(CO). [Rh(PPh.) (CO), [Rec] [PdCl.Bry] 2. Which of...
5. In organometallic complexes, the 18-electron rule is used to predict the number of donor groups...
5. In organometallic complexes, the 18-electron rule is used to predict the number of donor groups attached to the metal ion and its orientation Propose a possible structure for the following compounds: a. i. (n2-CHJ,TIC] (4 marks] (Cr(ox),(4,0 [4 marks] Determine if the proposed structures in part(a) are correct given that Ti (Z 22) and Cr (Z=24) (6 marks A reaction between Al and methyl halide yields methyl aluminium halides. Write a balanced reaction equation to produce methyl с. aluminium...
For each of the following complexes draw the structure, determine the electron count at the metal centre (use the neutral ligand method) and give the oxidation state of the metal (0) [Tan-CsHs)-(CH3)3] (11) [Ni(n-C3Hs)(PPh3>(CO)2] (111) [Mn(n-CHS)(CO)3]* [Ru(PMe3)2(CHPh)C12] (v) [Co(H2-COXCO);}2 Assume a direct Co-Co bond in (v) Explain, using suitable diagrams, the Berry pseudorotation mechanism
For each of the complexes, draw the structure and determine whether or not they obey the 18- electron rule. (1) (11) (111) (CpzCo] [Fe(n-C3Hs)(PMe3)2(CO)2]* [Fe(n'-C:Hs)(PMe3)2(THF)] CpRh(u2-H)2(CO)]2 [Mnz(CO)..] (v)
3 What spin only magnetic moment (uso) expected for each of the following complexes. (a) [MnBr.] (C) [V(H2O)]2+ (b) [Ni(H20)]2+ (e) [CoBraj? (d) [FeC16] (f) Mo(CO)6
1. Consider the following 4-coordinate complexes. For each of these: a. Do you expect the complex to be tetrahedral or square planar? Why? b. Draw an electron-orbital occupancy diagram for the d orbitals. c. If the complex is tetrahedral, calculate an LFSE in units of 4. Note that, for tetrahedral complexes, e orbitals are -3/54 relative to the average d-orbital energy, and t, orbitals are +2/54 relative to the average d-orbital energy. Ni(CO). [Rh(PPh.) (CO), [Rec] [PdCl.Bry] 2. Which of...
5. In organometallic complexes, the 18-electron rule is used to predict the number of donor groups attached to the metal ion and its orientation Propose a possible structure for the following compounds: a. i. (n2-CHJ,TIC] (4 marks] (Cr(ox),(4,0 [4 marks] Determine if the proposed structures in part(a) are correct given that Ti (Z 22) and Cr (Z=24) (6 marks A reaction between Al and methyl halide yields methyl aluminium halides. Write a balanced reaction equation to produce methyl с. aluminium...
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