(i) Compare and contrast the bonding of CO and NO with transition metals and compare these to NO+ .
(ii) Determine whether the NO ligand is linear or bent in CpNi(NO) and [Ru(CO)3(NO)]-, assuming the 18 electron rule is obeyed. Illustrate with diagrams.
(i) Compare and contrast the bonding of CO and NO with transition metals and compare these...
The bonding of olefins to transition metals can usually be described as a synergestic interaction. Explain and illustrate with the aid of labeled diagrams your understanding of this statement. (a) The bonding of olefins to transition metals can usually be described as a synergestic interaction. Explain and illustrate with the aid of labeled diagrams your understanding of this statement.
Q3 (5 points) Discuss the bonding between CO, the prototypical ft-acid ligand, and d-metals in octahedral transition metal carbonyl complexes?
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...
have the lowest first ionization energies of the groups listed. Halogens Alkaline earth metals Transition elements Alkali metals How many bonding electrons are in the Lewis structure of carbon monoxide, CO? 3 02 Consider the following electronegativity values: H = 2.1, CI = 3.0, F = 4.0 Which molecule below would you expect to have the more polar bond? HF HCI F2 CIZ Which compound below is a nonpolar molecule AND has a linear molecular geometry? ОСНА BeCl2 ОН20 SCI2
(b) Determine the oxidation state of the metal, the d electron configuration, the number of unpaired electrons and the ligand field stabilisation energy for the following complexes: (i) [Co(NH3)5Br]2+ (ii) [MnO4]- (iii) [Fe(CN)6]3- (iv) [Cu(H2O)6]2+
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...
Q1. The following species a)-c) all contain complex ions of transition metals, which you can assume take up an octahedral geometry. a) [RuCl3(H2O)3] b) [Ir(bpy)3]Cl3 ; bipy = 2,2'-bipyridine c) K2[Mo(NCS)6] For each species: i) draw all the possible isomers of the complex ions; ii) calculate the charge of the metal, and the dn configuration; iii) draw a diagram showing d orbital occupancy and, where high and low spin cases are possible, predict which will be favoured considering the spectrochemical...
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...
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] ...
molecular Example #lone pairs electron pair geometry shape # of bonds #of bonding groups tetrahedral tetrahedral pyramidal NH tetrahedral bent HO tetrahedral 2 Planar C-OH 1 double 2 single Planar triangular triangular Planar bent NO, 1 double 1 single triangular linear O linear 2 double 1. Using the chart above, draw the Lewis dot structure, determine the electron pair geometry, and determine the molecular geometry of each of the following: are very expensive. Please chut down project when not in...