ORTEP struture and selected crystal data for fluoride complex (3a)

Hydrogen atoms omitted for clarity

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Si-O 2.0649(13)

Si-F 1.6754(12)

Si-C(11) 1.857(2)

Si-C(10) 1.861(2)

Si-C(9) 1.898(2)

O-Si-C(11) 87.34(9)

O-Si-C(10) 87.19(8)

C(11)-Si-C(10) 117.96(10)

O-Si-C(9) 80.65(6)

C(11)-Si-C(9) 119.72(10)

C(10)-Si-C(9) 120.08(9)

F-Si-C(9) 90.81(7)

F-Si-C(11) 96.98(9)

F-Si-C(10) 97.20(8)

F-Si-O 171.5(5)

ORTEP structure and selected crystal data for chloride complex (3b)

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Si-O 1.942(5)

Si-Cl 2.319(3)

Si-C(11) 1.875(8)

Si-C(10) 1.863(9)

Si-C(9) 1.900(7)

O-Si-C(11) 90.1(3)

O-Si-C(10) 91.0(3)

C(11)-Si-C(10) 119.7(4)

O-Si-C(C9) 84.1(3)

C(11)-Si-C(9) 118.9(5)

C(10)-Si-C(9) 122.3(4)

Cl-Si-C(9) 87.2(2)

Cl-Si-C(11) 94.1(3)

Cl-Si-C(10) 93.6(3)

Cl-Si-O 171.4(2)

ORTEP structure and selected crystal data for bromide complex (3c)

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Si-O 1.853(7)

Si-Br 2.647(3)

Si-C(11) 1.860(10)

Si-C(10) 1.851(10)

Si-C(9) 1.886(9)

O-Si-C(11) 94.5(4)

O-Si-C(10) 96.4(4)

C(11)-Si-C(10) 118.2(5)

O-Si-C(9) 86.9(2)

C(11)-Si-C(9) 118.9(5)

C(10)-Si-C(9) 122.3(4)

Br-Si-C(9) 82.6(3)

Br-Si-C(11) 90.0(3)

Br-Si-C(10) 90.0(3)

Br-Si-O 169.4(2)

ORTEP structure and selected crystal data for triflate complex (3d)

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Si-O(carbonyl) 1.743(3)

Si-O(triflate) 2.758(3)

Si-C(11) 1.836(5)

Si-C(10) 1.848(4)

Si-C(9) 1.311(5)

O(carbonyl)-Si-C(11) 104.3(2)

O(carbonyl)-Si-C(10) 106.0(2)

C(11)-Si-C(10) 116.4(2)

O(carbonyl)-Si-C(9) 89.9(2)

C(11)-Si-C(9) 118.4(2)

C(10)-Si-C(9) 116.1(2)

O(triflate)-Si-C(9) 71.0(2)

O(triflate)-Si-C(11) 81.6(2)

O(triflate)-Si-C(10) 87.3(2)

O(triflate)-Si-O(carbonyl) 160.4(2)