Calculate the minimum radius ratio for a coordination number of (a) 4 and (b) 6.
Calculate the minimum radius ratio for a coordination number of (a) 4 and (b) 6.
Material Properties
2. (a) 16 pts. Show that the minimum cation-to-anion radius ratio for a coordination number (CN) of eight (8) is 0.73 aalons 2. All thess are
Determine the atomic radius ratio, coordination number, and name the probable crystal structure of MnO2.
Thanks!
6. Consider iron (II) chloride, FeCl2. (a) What is the ratio of the cationic to the anionic radius? (b) Based on this ratio, what type of coordination geometry does it form? (c) What is the coordination number? (d) Is FeCl isomorphous with SiO2, which has a tetrahedral coordination geometry? Why or why not? (4 marks) 7. Based on their chemical formulas, what is the structure (e.g. sheet silicate) for the following minerals? a) liberite, LizBeSiO4; (b) jadeite, NaAlSi206? (2...
Give the coordination number and charge on the central atom for the coordination compound [Co(en)2Br2]NO3. (Note: en is ethylenediamine, NH2CH2CH2NH2.) (a) coordination number is 6, charge is +3 (b) coordination number is 4, charge is +3 (c) coordination number is 6, charge is +1 (d) coordination number is 4, charge is +1 (e) coordination number is 6, charge is +2
What are the coordination number and number of valence electrons for each Ru in the following complex? Cl Cl Ru Cl Cl Select one O a coordination number 9, Number of valence electrons 17 O b. Coordination number 6, Number of valence electrons 18 O c. Coordination number 4, Number of valence electrons 18 O d. Coordination number 6, Number of valence electrons 17 Assuming the 18 electron rule applies to the complex (Co (COlal, which of the following structures...
Calculate the (a) oxidation state of the metal and (b) the coordination number. Which of the following complexes has the highest value of the sum, a +b. The spectrochemical series is i <Br" <CI <F <OH <H20 < NH; <en< NO, <CN Select one: A. Two of complexes have the same highest value of the sum, a +b. B. Na[Cr(NH3),C13] C. [Ni(H20),(NO2)2] D. [Co(en) CICI E.K_[Cu(CN),
16. Calculate the number of atoms per unit cell, coordination number, and atomic packing factor for an HCP cell. 17. Assuming ideal spherical atoms calculate the c/a ratio of a HCP unit cell? 18. Magnesium is HCP crystal structure, what is the volume of the Mg unit cell? 19. What is the value of c, for magnesium? (Hint: Volume-basal area x height.) 20. What is the value of a, for magnesium? (Hint: Volume basal area x height)
19
What is the coordination number of the iron in K_3[Fe(CN)_6]? 2 3 4 6 9
Write the formula for a complex formed between Fe3 and
ethylenediamine (NH2CH2CH2NH2), with a coordination number of
6.
Write the formula for a complex formed between Fe2 and oxalate
(C2O42–), with a coordination number of 4.
Write the formula for a complex formed between Fe3+ and ethylenediamine (NH2CH2CH2NH2), with a coordination number of 6. (Feſen,)]3+ Write the formula for a complex formed between Fe2+ and oxalate (C2042-), with a coordination number of 4. (Fe[C,0.)]?
3) In diopside, CaMgSi 06, Si is coordinated to 4 oxygens. What is the coordination of Ca (Ca ionic radius = 1.12Å, O ionic radius = 1.4 Å)? Mg is found in octahedral coordination, what are the largest and smallest radii that Mg could have to be stable in this coordination? (hint: remember, O is the only anion here!) (20)