State and explain which one of the following pair is more stable.
a) [Cr(NMe3)6]3+ or [Cr(PMe3)6]3+
b) CoF2 or CoF3
c) Al(CH3)3●N(CH3)3 or Al(CH3)3●P(CH3)3
State and explain which one of the following pair is more stable. a) [Cr(NMe3)6]3+ or [Cr(PMe3)6]3+...
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] ...
For each pair of elements listed, predict which one has more stable isotopes: (a) Pd or Ag, (b) Na or Mg, (c) I or Xe.
Match the oxidation state to the coordinated metal centre. Which pair is incorrect? Question 3 Not yet answered Marked out of 1.00 P Flag question Select one: O a. [Fe(CN)614-; +2 O b. K[Cu(CN)2]; +2 O c. [Cr(ox)3]3-; +3 O d. [Sc{N(SiMe3)2}3]; +3
1. (3) Which of the following resonance structures is more stable? Why? Show lone pair(s) on the oxygen and complete electron movements
3. 4 points Which of the following alkenes is more stable? Explain.
1. Which position is more stable for the methyl group in methylcyclohexane: an equatorial position or an axial position? Explain your answer. 2. Draw the Fisher projections for the pair of enantiomers of lactic acid, CH3–CH(OH)–COOH. 3. For 2,3-dibromobutane: a. How many stereoisomers are possible for the compound? Br Br | | CH3–CH–CH–CH3 b. Draw Fisher projections for each stereoisomer, label enantiomers. Label any meso 4. Determine the relationship between the following pairs of...
1. Draw the different conformations of cyclohexane and indicate which conformer is more stable and explain the reason why it is more stable. 2. Draw the saddle conformation of cyclohexane and indicate the axial and equatorial positions of the hydrogen atoms. 3. Identify the chiral carbon with an asterisk in the following molecule. Say how many stereoisomers you can have. CH3CH(OH)CH(Br)CH3
Which of the following compounds is more stable? or A B A They have same stability B Onto which of the numbered atoms in this structure can the negative charge be moved by resonance delocalization? 8 4 5 3 7 HC 2 co 1 2, 4, 6 only 1, 3, 5, 8 only 1, 3, 5 only 2, 4, 6, 7 only Which Newman projection represents the most stable conformation of the following compound when viewed down the 2-3 carbon-carbon...
3- State which one of the paired structures (A or B) is most stable. "Briefly explain" your choice, and provide the resultant structures for each compound. In addition, provide the answer wherereguired A BA 4- State whether each structure (AC) will behave as an organic base or as an organic acid. Brieny exelaine your choice, and provide the resultant structures for each compound Note. previde 5- Predict the structure (s ofthe maier mono-substituted product (s) expected from the reactions below....
given Which is more stable? Position A/ Position B (circle one) COOH COOH Which is more stable? Position A/ Position B (circle one) 9. Given the results of the previous problems, if an ELECTRON DONATING group is already attached to benzene, it is more stable to add the electrophile to the _position(s). Look at positions A and B in the previous problems. a. Ortho b. Meta C. Para d. Two of the above e. None of the above 10. If...