chem 211 lab report 3

chem 211 lab report 3 - 109.47° N-H-H 35.26° Formal...

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Ben Kemper Lab Instructor: Don Knobloch Lab: Friday PM 9/29/06 Molecular Shape and Polarity Part A Bond Lengths and Angles Optimizing the Structure N-H Bond Lengths: 1.003 Å H-N-H Bond Angle: 107.21° Molecular Polarity and Partial Charges Dipole Moment of Ammonia: 1.92 D Charge of H Atoms: .36 Charge of N Atom: -1.087 Build a Model of SF 4 Bond Lengths S-F (Axial) 1.632 Å S-F (Equitorial) 1.544 Å Bond Angles (Å) F-S-F (Axial-Equ.) 86.85° F-S-F (Equitorial-Equ.) 102.67° Dipole Moment: 1.00 D Partial Charge on S Atom: .737 Partial Charge on F Atoms: -.305 (Axial Atoms) and -.064 (Equatorial Atoms) Part B CHCl 3 Formal Charges: Molecular Polarity = 1.35 D C = .212 H = .128 Cl = -.113 Before Optimization After Optimization C-H Bond Length 1.096 Å 1.071 Å C-Cl Bond Length 1.722 Å 1.763 Å Cl-C-Cl Bond Angle 109.47° 111.30° Cl-C-H Bond Angle 109.47° 107.58° PF 5 Bond Length All N-H Bonds 1.012 Å H-H 1.653 Å Bond Angle All H-N-H Angles
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Unformatted text preview: 109.47° N-H-H 35.26° Formal Charges P = 1.473 F = -.353 (Axial) and -.256 (Equitorial) Molecular Polarity = 0.00 D Before Optimization After Optimization P-F Bond Length 1.80 Å 1.535 Å F-P-F Bond Angle 90° and 120° 90° and 120° SO 3 2-Formal Charges S = -.008 O = -.664 Molecular Polarity = 0.85 D Before Optimization After Optimization S-O Bond Length 1.80 Å 1.526 Å O-S-O Bond Angle 109.47° 107.66° Part C Our Molecule: Total Length (Carbon to Carbon) – 7.545 Å Total Height – 3.468 Å Bond Lengths Charges : Upper H: .323 Lower H: .052 Left C: -.394 Right C: -.541 Other Group’s Molecule: Total Width: 3.781 Å Total Length: 7.831 Å (No other information given about bond lengths, angles, or charges.) Type of Bond Angle OCH 120.27° OCC 122.92° CCC 110.19° CCH 107.83° HCH 105.63° CNH 117.8° CCN 128.22°...
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chem 211 lab report 3 - 109.47° N-H-H 35.26° Formal...

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