= MnAs has the hexagonal NiAs-type structure, a = 3.72 A and C 5.71 Å. can you calculate both (a) Mn - As distance, and (b) two Mn - Mn distances, and (c) As - As distance, and (d) coordination environments of Mn and As
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- Which dn electron configurations are expected to undergo a Jahn–Teller distortion in a tetrahedral coordination compound? Explain your answer.In CrBr2, which crystallizes with a distorted CdI2 structure, four Cr-Br distances are 254 pm and two are 300 pm. Explain the origin of the different Cr-Br bond lengths in this extended ionic or network covalent solid.3. (c)) Fe(CN),]³- exhibits two sets of charge transfer absorptions in visible and ultraviolet region but [Fe(CN),]*¯ shows 11 only one absorption in the ultraviolet region. Explain.
- 8. Which of the following arrangement is correct according to increasing stretching frequency? (A) Mn(CO),For the following structure derived from a tetrahedral Ni(CO)4, please determinethe number of infrared and Raman bands for their CO groups. (Please note: Modes withtranslational symmetry (x, y, z) will be infrared active while modes with xy, xz, yz, x2, y2 or z2symmetry are Raman active.)Which of the following statements is false? * 2nd and 3rd row d metals are generally larger in size than 1st row d metals. The most stable electronic configuration of Cr (Z = 24) is [Ar]4s?3d*. Between 2nd and 3rd row d metals there is little difference in size. Within the same "n", the s block metals are larger than the d block metals. Considering a homonuclear diatomic molecule, Tt-symmetry indicates that when the molecule is rotated around the internuclear axis, the orbitals undergo a change in phase. O True FalseConsider the coordination compound [FeCl₂(NH3)4][FeBr4]. Which of the following is a coordination isomer of the given compound? O [FeBr₂(NH3)4][FeCl4] O [FeBr2(NH3)4][FeBr₂Cl₂] O [FeBrCl(NH3)4][FeBrCl3] O [FeCl₂(NH3)4][FeBr₂Cl₂]Give only typing answer with explanation and conclusion Calculate the coordination number of the following compounds by using its relation to its stoichiometry: i) KCl , C.N of K+: 6 ii) CaF2 C.N of F-: 4 iii) CsCl, C.N of Cs+: 8 iv) TiO2 : C.N of O2-: 32A Identify and justify which of the structure A or B are coordination structure of compound I. ody Hot g N HO | A B H-ZOConsider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all workConsider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work. (b) How many valence d electrons does the metal center have? Justify your answer. (c) How many unpaired electrons per molecule would a magnetic susceptibility experiment predict? What would the S number be for this transition metal center? Justify your answers. (d) What electronic transition results from absorption of 864-nm light? (e) Calculate the ligand stabilization energy (in units of ∆o) and units of coulombic (Πc) energy. (f) How would the ligand field strengths (∆o) of [Fe(NH3)6] 2+ and [Fe(bipy)3] 2+ differ from that of [FeBr6] 4−? Why?A student has succeeded in identifying 2 types of complex compounds, the first compound (Odd Student ID) has percentage of Pt 52.6%; N 7.6%; H 1.63%; and 38.2% Cl with a central atomic charge of +4, while the second compound has composition of Co 22.0%; N 31.4%; H 6.78%; and 39.8% Cl with a central atomic charge of +3. a) Determine the empirical formula of both complex compounds! b) Draw the chemical structure and give name of both complex compounds!SEE MORE QUESTIONS