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Synthesis and Structural Characterization of ... - Jacobs University

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Chapter 5<br />

Published Results<br />

Table 5.1. Crystal Data <strong>and</strong> Structure Refinement for (Na-26) <strong>and</strong> (Na-27).<br />

Code Na-26 Na-27<br />

Empirical formula H 130 Na 22 O 144 Te 4 W 20 H 52 Na 14 O 80 Te W 15<br />

MW 7172.18 4539.42<br />

Crystal system Triclinic Orthorhombic<br />

Space group (no.) P1̅ (2) Pccn<br />

aÅ 12.741(2) 11.8841(5)<br />

bÅ 16.842(3) 20.8934(11)<br />

cÅ 17.197(4) 31.801(2)<br />

° 93.961(10) 90<br />

° 107.466(8) 90<br />

° 108.548(8) 90<br />

V/Å 3 3281.5(11) 7896.3(7)<br />

Z 1 4<br />

T/ ºC -100(2) -100(2)<br />

λÅ 0.71073 0.71073<br />

D/ Mg m -3 3.629 3.753<br />

μ/ mm -1 18.53 22.29<br />

R[I >2sigma(I)] a 0.037 0.074<br />

R w (all data) b 0.100 0.225<br />

______________________________________________<br />

a<br />

R = ∑|F o | – |F c | |∑| |F o |. b R w = {∑[w(F 2 o – F 2 c ) 2 ] / ∑[w(F 2 o ) 2 ]} 1/2 .<br />

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