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A solution and solid state study of niobium complexes University of ...

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Appendix A<br />

Table 3.4: Anisotropic displacement parameters (A 2 x 10 3 ) for<br />

[NbCl2(phacac)(OMe)2] <strong>and</strong> [NbCl(phacac)(OMe)3]. The anisotropic displacement<br />

factor exponent takes the form: -2π 2 [h 2 a٭ 2 U 11 + … + 2hka٭b٭U 23 ].<br />

Atom U 11 U 22 U 33 U 23 U 13 U 12<br />

Nb(1) 27 (1) 28 (1) 79 (1) 4 (1) -21 (1) -2 (1)<br />

Cl(1) 29 (1) 31 (1) 63 (1) 2 (1) -18 (1) -5 (1)<br />

Cl(2) 55 (4) 44 (2) 92 (10) 12 (4) -19 (4) 5 (2)<br />

O(3) 46 (7) 47 (7) 74 (11) -3 (8) -2 (8) 16 (5)<br />

C(5) 68 (14) 44 (10) 110 (20) -7 (13) 29 (16) 4 (9)<br />

O(2) 25 (2) 34 (2) 69 (2) 8 (2) -18 (2) -8 (1)<br />

O(1) 31 (2) 30 (2) 61 (2) 7 (2) -17 (2) -7 (1)<br />

O(5) 39 (2) 24 (2) 84 (3) -1 (2) -26 (2) 1 (2)<br />

O(4) 37 (2) 36 (2) 105 (3) 10 (2) -37 (2) 1 (2)<br />

C(14) 25 (2) 42 (3) 48 (3) -5 (2) -10 (2) -2 (2)<br />

C(12) 34 (3) 29 (2) 55 (3) 5 (2) -14 (2) -5 (2)<br />

C(11) 17 (2) 32 (2) 44 (2) -6 (2) -1 (2) 1 (2)<br />

C(15) 37 (3) 38 (3) 47 (3) 7 (2) -8 (2) -3 (2)<br />

C(16) 30 (2) 36 (2) 58 (3) 4 (2) -4 (2) -12 (2)<br />

C(2) 27 (2) 25 (2) 66 (3) 2 (2) -12 (2) -5 (2)<br />

C(7) 40 (3) 39 (3) 69 (4) -20 (3) -5 (3) -6 (2)<br />

C(4) 40 (3) 35 (3) 74 (4) 10 (2) -22 (3) -16 (2)<br />

C(1) 21 (2) 28 (2) 48 (3) -4 (2) -5 (2) -2 (2)<br />

C(13) 37 (3) 41 (3) 71 (4) 5 (3) -19 (3) -16 (2)<br />

C(3) 24 (2) 31 (2) 58 (3) 1 (2) -4 (2) -5 (2)<br />

C(6) 72 (5) 41 (3) 105 (5) 20 (3) -60 (4) -9 (3)<br />

Table 3.5: Hydrogen coordinates (x 10 4 ) <strong>and</strong> isotropic displacement parameters (Å 2<br />

x 10 3 ) for [NbCl2(phacac)(OMe)2] <strong>and</strong> [NbCl(phacac)(OMe)3].<br />

Atom x y z U(eq)<br />

H(5A) 6160 280 10800 109<br />

H(5C) 5310 1018 10622 109<br />

H(5B) 6223 1567 11134 109<br />

H(14) 5587 -1042 14203 47<br />

H(12) 9105 578 10768 49<br />

H(15) 9620 -2521 14000 50<br />

H(16) 8401 -2469 12142 50<br />

H(2) 7431 -2447 10252 49<br />

H(7B) 7966 2666 9560 75<br />

H(7A) 8119 3338 8003 75<br />

H(7C) 8686 2276 8469 75<br />

H(4C) 5402 -2612 8486 77<br />

H(4A) 6202 -3349 9150 77<br />

112

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