ChemLab8 - Co(NH 3 6 Complex C had the third highest...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
The Spectrochemical Series By Sam Alperin Lab Instructor: Dr. Munkenbeck November 30, 2008
Image of page 2
Results and Discussion: After successfully synthesizing our cobalt complex A, the wavelengths of maximum absorbance were measured, Cobalt Complex Color Maximum Wavelength(nm) Intensity A Light Magenta 523-529 .625 B Light Orange 468-473 .278 C Light Pink 482-510 .108 D Light Pink 543-549 .125 E Orangeish Pink 480-495 .295 The crystal field splitting was calculated for each of the cobalt complexes using the formula o hc = λ J nm 19 ^ 10 * 779 . 3 526 ) 8 ^ 10 * 00 . 3 )( 34 ^ 10 * 626 . 6 ( - = - Cobalt Complex Crystal Field Splitting (J) A 3.779*10^-19 B 4.225*10^-19 C 4.008*10^-19 D 3.641*10^-19 E 4.077*10^-19 Therefore since complex A has the second highest crystal field splitting, it must have been Co(NH 3 ) 5 Cl - . Complex B had the highest crystal field splitting, and was therefore
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Co(NH 3 ) 6 . Complex C had the third highest crystal field splitting and was therefore identified as Co(NH 3 ) 5 F-. Complex D, with it lowest crystal field splitting, was identified as Co(NH 3 ) 5 Br-. Lastly, Complex E was identified as Co(NH 3 ) 5 (H 2 0). This was all based on this spectrochemical series (where the crystal field splitting increases from left to right): Br-<Cl-<F-<H 2 O<NH 3 Conclusion : Each of the five cobalt complexes was identified after using their maximum absorbed wavelengths to calculate their crystal field splitting. Our cobalt complex, complex A, was identified as Co(NH 3 ) 5 Cl- and cobalt complex B was identified as Co(NH 3 ) 6 ....
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern