Guided course 03:01The greatest ligand-orbital interactions result in the greatest increase in energy.Jules Bruno242views2rank
Multiple ChoiceWhat is the correct order when the following complexes are arranged in ascending order of the Δ values?i) [Mn(NO2)6]4– ii) [Ni(CN)4]2– iii) [Zn(OH)4]2–189views
Textbook QuestionWhich of these crystal-field splitting diagrams represents: a. a weak-field octahedral complex of Fe³⁺ , b. a strong-field octahedral complex of Fe³⁺ c. a tetrahedral complex of Fe³⁺ d. a tetrahedral complex of Ni²⁺ (The diagrams do not indicate the relative magnitudes of ∆. ) [Find more in Section 23.6.] <IMAGE> <IMAGE> <IMAGE> <IMAGE>113views
Textbook QuestionIn acidic aqueous solution, the complex trans-[Co(en)2Cl1]2+(aq) undergoes the following substitution reaction:trans-[Co(en)2Cl1]+(aq) + H2O(l) → trans-[Co(en)2(H2O)Cl]2+(aq) + Cl–(aq)The reaction is first order in trans-[Co(en)2Cl2]+(aq), and the rate constant at 25°C is 3.2×10–5 s–1.e. Draw a crystal field energy-level diagram for trans-[Co(en)2Cl2]+ that takes account of the fact that Cl– is a weaker-field ligand than ethylenediamine.81views
Textbook QuestionFormation constants for the ammonia and ethylenediamine complexes of nickel(II) indicate that Ni(en)32+ is much morestable than Ni(NH3)62+:(1) <REACTION>(2) <REACTION>The enthalpy changes for the two reactions, ΔH°1 and ΔH°2, should be about the same because both complexes have six Ni﹣N bonds. (a) Which of the two reactions should have the larger entropy change, ΔS°? Explain.86views
Textbook QuestionPredict the crystal field energy-level diagram for a linear ML2 complex that has two ligands along the <IMAGE>: <IMAGE> 106views
Textbook QuestionNickel(II) complexes with the formula NiX2L2, where X is Cl- or N-bonded NCS- and L is the monodentate triphenylphosphine ligand P(C6H5)3, can be square planar or tetrahedral. (c) Draw possible structures for each of the NiX2L2 complexes, and tell which ones have a dipole moment.95views
Textbook QuestionPredict the crystal field energy-level diagram for a square pyramidal ML5 complex that has two ligands along the <IMAGE> axes but only one ligand along the z axis. Your diagram should be intermediate between those for an octahedral ML6 complex and a square planar ML4 complex. <IMAGE>107views
Textbook QuestionNickel(II) complexes with the formula NiX2L2, where X− is Cl− or N-bonded NCS− and L is the monodentate triphenylphosphine ligand P(C6H5)3, can be square planar or tetrahedral.(a) Draw crystal field energy-level diagrams for a square planar and a tetrahedral nickel(II) complex, and show the population of the orbitals.97views
Textbook QuestionExplain why [CoCl4]2- (blue) and [Co(H2O)6]2+ (pink) have different colors. Which complex has its absorption bands at longer wavelengths? <IMAGE> 116views