THE CRYSTAL AND MOLECULAR STRUCTURE OF TRICYCLOPENTADIENYLETHYNYLURANIUM(IV)

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• Other crystallographic programs used on either an RCA 70/6 or a UNIVAC 1110 include ORFFE (distance and angles with esd's, by W. R. Busing, K. O. Martin, and H. A. Levy), ALFF (Fourier synthesis, by C. R. Hubbard, C. O. Quicksall, and R. A. Jacobson), ORABS (absorption corrections, by D. J. Wehe, W. R. Busing, and H. A. Levy), ORTEP (thermal ellipsoid drawings, by C. K. Johnson), and BPL (least-squares planes, by W. E. Hunter)
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• The final values of the observed and calculated structure factor amplitudes are given in a table which may be obtained from the Editor's office
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