++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + XPREP - DATA PREPARATION & RECIPROCAL SPACE EXPLORATION Ver. 5.1/NT + + COPYRIGHT(c) 1997 Bruker Analytical X-ray Systems All Rights Reserved + + s92 started at 10:18:47 on 29-MAR-0 + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Original cell in Angstroms and degrees: 12.677 16.058 16.085 110.32 93.16 96.36 42694 Reflections read from file s92.hkl; mean (I/sigma) = 6.98 Lattice exceptions: P A B C I F Obv Rev All N (total) = 0 21388 21345 21367 21357 32050 28460 28464 42694 N (int>3sigma) = 0 13493 13388 13515 13566 20198 17997 18058 26993 Mean intensity = 0.0 45.5 46.0 45.8 44.6 45.8 45.5 45.1 45.5 Mean int/sigma = 0.0 7.0 7.0 7.1 7.1 7.0 7.0 7.1 7.1 Lattice type: P chosen Volume: 3036.24 ------------------------------------------------------------------------------- DETERMINATION OF REDUCED (NIGGLI) CELL Transformation from original cell (HKLF-matrix): 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.0000 Unitcell: 12.677 16.058 16.085 110.32 93.16 96.36 Niggli form: a.a = 160.71 b.b = 257.87 c.c = 258.73 b.c = -89.72 a.c = -11.23 a.b = -22.57 ------------------------------------------------------------------------------- SEARCH FOR HIGHER METRIC SYMMETRY ------------------------------------------------------------------------------ Option A: FOM = 0.000 deg. TRICLINIC P-lattice R(int) = 0.096 [ 29115] Cell: 12.677 16.058 16.085 110.32 93.16 96.36 Volume: 3036.24 Matrix: 1.0000 0.0000 0.0000 0.0000 1.0000 0.0000 0.0000 0.0000 1.0000 Option A selected ------------------------------------------------------------------------------- SPACE GROUP DETERMINATION Lattice exceptions: P A B C I F Obv Rev All N (total) = 0 21388 21345 21367 21357 32050 28460 28464 42694 N (int>3sigma) = 0 13493 13388 13515 13566 20198 17997 18058 26993 Mean intensity = 0.0 45.5 46.0 45.8 44.6 45.8 45.5 45.1 45.5 Mean int/sigma = 0.0 7.0 7.0 7.1 7.1 7.0 7.0 7.1 7.1 Crystal system A and Lattice type P selected Mean |E*E-1| = 0.982 [expected .968 centrosym and .736 non-centrosym] Chiral flag NOT set Systematic absences not required for triclinic Option Space Group No. Type Axes CSD R(int) N(eq) Syst. Abs. CFOM [A] P-1 # 2 centro 1 8646 0.096 29115 0.0 / 7.1 1.45 [B] P1 # 1 chiral 1 700 0.096 29115 0.0 / 7.1 7.62 Option [A] chosen ------------------------------------------------------------------------------- Determination of unit-cell contents Formula: C66H66P4Si2Ru Formula weight = 1140.32 Tentative Z (number of formula units/cell) = 2.0 giving rho = 1.247, non-H atomic volume = 20.8 and following cell contents and analysis: C 132.00 69.51 % H 132.00 5.83 % Si 4.00 4.93 % P 8.00 10.86 % Ru 2.00 8.86 % F(000) = 1188.0 Mo-K(alpha) radiation Mu (mm-1) = 0.44 ------------------------------------------------------------------------------- File s92.ins set up as follows: TITL s92 in P-1 CELL 0.71073 12.6771 16.0582 16.0851 110.325 93.158 96.365 ZERR 2.00 0.0025 0.0032 0.0032 0.030 0.030 0.030 LATT 1 SFAC C H SI P RU UNIT 132 132 4 8 2 TREF HKLF 4 END -------------------------------------------------------------------------------