Howard. D. Flack
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Chemistry
Howard. D. Flack's Degrees
- PhD Chemistry University of Geneva
Why Is Howard. D. Flack Influential?
(Suggest an Edit or Addition)Howard. D. Flack's Published Works
Number of citations in a given year to any of this author's works
Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author
Published Works
- On enantiomorph‐polarity estimation (1983) (8996)
- Use of intensity quotients and differences in absolute structure refinement (2013) (1196)
- Reporting and evaluating absolute-structure and absolute-configuration determinations (2000) (819)
- The use of X-ray crystallography to determine absolute configuration. (2008) (516)
- Least-squares absolute-structure refinement. Practical experience and ancillary calculations (1985) (313)
- Chiral and Achiral Crystal Structures (2003) (291)
- The use of the Durbin–Watson d statistic in Rietveld analysis (1987) (182)
- Electric field gradients and charge density in corundum, α-Al2O3 (1982) (173)
- Precise absolute-structure determination in light-atom crystals (2004) (169)
- Louis Pasteur's discovery of molecular chirality and spontaneous resolution in 1848, together with a complete review of his crystallographic and chemical work. (2009) (124)
- On the Use of Least-Squares Restraints for Origin Fixing in Polar Space Groups (1988) (117)
- The evaluation of transmission factors and their first derivatives with respect to crystal shape parameters (1991) (108)
- Practical applications of averages and differences of Friedel opposites. (2011) (97)
- Xtal 3.2 Reference Manual (1992) (84)
- Non-racemic (scalemic) planar-chiral five-membered metallacycles: routes, means, and pitfalls in their synthesis and characterization. (2008) (72)
- Selectivity enhancement in the Rh(II)-catalyzed cyclopropanation of styrene with (silanyloxyvinyl)diazoacetates. (2004) (59)
- Statistical descriptors in crystallography: Report of the IUCr Subcommittee on Statistical Descriptors (1989) (59)
- Structure of RNi3Al9 (R = Y, Gd, Dy, Er) with either ordered or partly disordered arrangement of Al‐atom triangles and rare‐earth‐metal atoms (1993) (57)
- The mean-square Friedel intensity difference in P1 with a centrosymmetric substructure. (2007) (48)
- High‐pressure phase of polytetrafluoroethylene (1972) (42)
- Statisical descriptions in crystallography. II. Report of a Working Group on Expression of Uncertainty in Measurement (1995) (40)
- Single crystal X-ray study of Mo6Se8-type selenides containing partially substituted (Mo,Me)6 clusters (Me = Ru,Re) (1983) (35)
- Centrosymmetric and pseudo-centrosymmetric structures refined as non-centrosymmetric. (2006) (34)
- The derivation of twin laws for (pseudo-)merohedry by coset decomposition (1987) (33)
- Applications and properties of the Bijvoet intensity ratio. (2008) (29)
- Analysing Friedel averages and differences. (2012) (27)
- The Mirror of Galadriel: looking at chiral and achiral crystal structures (2003) (24)
- Automatic absorption correction using intensity measurements from azimuthal scans (1974) (23)
- Compressibilities of some layer dichalcogenides (1972) (20)
- Refinement of Nb3Si and Nb3As (1975) (19)
- The use of X-ray Crystallography to Determine Absolute Configuration (II) (2008) (19)
- The Use of X‐Ray Crystallography to Determine Absolute Configuration (2008) (19)
- Design and Study of Structural Linear and Nonlinear Optical Properties of Chiral [Fe(phen)3]2+ Complexes. (2018) (17)
- Centrosymmetric crystal structures described as non-centrosymmetric: An analysis of reports in Inorganica Chimica Acta (2006) (17)
- Least‐squares absolute‐structure refinement. A case study of the effect of absorption correction, data region, stability constant and neglect of light atoms (1987) (17)
- An experimental absorption–extinction correction technique (1977) (16)
- On the Definition and Practical Use of Crystal-Based Azimuthal Angles (1989) (14)
- DIFRAC, single-crystal diffractometer output-conversion software (1992) (13)
- Absorption-weighted mean path lengths for spheres (1978) (13)
- Absolute-structure reports. (2013) (12)
- Statistical Descriptors in Crystallography Report of the International Union of Crystallography Subcommittee on Statistical Descriptors (1989) (11)
- The 2θ determination of diffraction peaks from `poor' powder samples. Application to biological apatite (1980) (11)
- Intensity statistics of Friedel opposites. (2008) (11)
- Absolute structure determination using CRYSTALS. (2016) (11)
- Concise intensity statistics of Friedel opposites and classification of the reflections. (2009) (10)
- Refinement and Thermal Expansion Coefficients of the Structure of Anthrone (20, -90 degrees C) and Comparison with Anthraquinone (1970) (10)
- Symmetry elements in space groups and point groups. Addenda to two IUCr reports on the nomenclature of symmetry. (2000) (10)
- Absolute-structure determination: past, present and future. (2014) (9)
- CAMEL JOCKEY, an absorption correction program (1975) (9)
- Encyclopedia of Spectroscopy and Spectrometry, 2nd Edition (2010) (7)
- Testing for serial correlation in intensity data (1980) (7)
- On the Refinement on Profile, Background and Net Intensities (1991) (7)
- Structure of di-μ-chloro-tetrachlorotetrakis(diethyl sulphide)diiridium(III) (1980) (7)
- CRYSTAL PACKING (2005) (6)
- Probability density functions of the average and difference intensities of Friedel opposites. (2010) (6)
- (Z)‐2‐Methoxy‐1,2‐diphenylvinyl Alcohol, A Remarkably Stable Enol (1983) (6)
- Methods of space-group determination - a supplement dealing with twinned crystals and metric specialization. (2015) (5)
- The crystal and molecular structure of thiocyanato and isothiocyanato Ir and Rh complexes. I. Thiocyanatopenta‐ammineiridium(III) diperchlorate, [Ir(SCN)(NH3)5](ClO4)2 (1973) (5)
- HUG and SQUEEZE: using CRYSTALS to incorporate resonant scattering in the SQUEEZE structure-factor contributions to determine absolute structure. (2017) (5)
- A segment description for the unique set of reflections in non-centrosymmetric crystal classes (1984) (5)
- Merohedral twin interpretation spreadsheet, including command lines for SHELXL (2013) (5)
- Virtual issue on absolute structure. (2012) (5)
- TiGePt--a study of Friedel differences. (2013) (5)
- Interpretation of anomalous streaks in crystals of anthrone (1970) (4)
- Structure of μ‐chloro‐pentachloro‐μ‐(diethyl sulphide)‐tris(diethyl sulphide)diiridium(III) (1980) (4)
- On the polarization factor for crystal‐monochromated X‐radiation. I. Assessment of errors (1980) (4)
- Xtal 3.2 Users Manual (1992) (4)
- Anti-wurtzite reoriented. (2003) (4)
- Calculation of Dimensions of Ordered Regions in Triclinic and Monoclinic Pseudosymmetric Crystals from the Intensity of Diffuse Scattering (1970) (4)
- Stereochemistry and absolute structure of (+)‐8β‐acetoxy‐12‐(4‐bromobenzoyloxy)‐13,14,15,16‐tetranorlabdane, C25H35BrO4 (1984) (4)
- Guide to the use of the space‐group tables (2016) (4)
- On the polarization factor for crystal‐monochromated X‐radiation. II. A method for determining the polarization ratio for crystal monochromators (1980) (3)
- A priori estimates of errors in intensities for imperfectly spherical crystals (1979) (3)
- Short-range order, thermal vibration and expansion, and other properties of pseudosymmetric and mixed crystals of small organic molecules - Short-range order in crystals of anthrone and in mixed crystals of anthrone-anthraquinone (1970) (3)
- Sliding in polytetrafluoroethylene crystals (1974) (3)
- Absorption and extinction corrections: standard tests (1980) (3)
- Crystallographic computing 6 : a window on modern crystallography : papers presented at the International School of Crystallographic Computing held at Balatonfüred, Hungary 31 May-6 June 1992 (1993) (2)
- Absolute-Structure Determination: Past, Present and Future. (2014) (2)
- On the polarization factor for crystal-monochromated X-radiation. III. A weighting scheme for products (1980) (2)
- On the definition and practical use of crystal-based azimuthal angles. Erratum (1992) (2)
- 8.1 Perspective and Concepts: Chirality in Nineteenth Century Science (2012) (2)
- Methods of space-group determination (2016) (2)
- The revival of the Bravais lattice. (2015) (1)
- Short-range order, thermal vibration and expansion, and other properties of pseudosymmetric and mixed crystals of small organic molecules - Refinement and thermal expansion coefficients of the structure of anthrone (20, — 90 °C) and comparison with anthraquinone (1970) (1)
- Surfing the Crystallographic Net (CRYSNET) workshops (1996) (1)
- World Wide Web for Crystallography (1996) (1)
- Is your crystal representative of the bulk (2005) (1)
- Teaching about chirality in crystals and molecules (2004) (1)
- Symmetry, Spectroscopy, and Crystallography: The Structural Nexus. By Robert Glaser. Wiley-VCH, 2015. Pp. 328. Price GBP 80.00 (hardcover). ISBN 978-3-527-33749-1. (2017) (1)
- Patterson functions (2015) (1)
- How to determine the space group of a twinned crystal or one with metric specialization (2015) (1)
- Response to Olczak's comment on Probability density functions of the average and difference intensities of Friedel opposites (2011) (1)
- Easy refinement of absolute configuration and polarity, and easy avoidance of biased positional parameters (1984) (1)
- Intensity errors due to beam inhomogeneity and imperfectly spherical crystals (1979) (1)
- Internet resources for crystallography (1996) (1)
- 8.33 Physical and Spectrometric Analysis: Absolute Configuration Determination by X-ray Crystallography (2012) (1)
- Introduction to crystallographic statistics by U. Shmueli and G. H. Weiss (1997) (1)
- Refinement of SmAu6 (1974) (1)
- Intensity statistics of Friedel opposites and classification of reflections (2009) (1)
- Non-Racemic (Scalemic) Planar-Chiral Five-Membered Metallacycles: Routes, Means, and Pitfalls in Their Synthesis and Characterization (2008) (1)
- Structure Refinement (Solid State Diffraction) (1999) (1)
- Experience with the pan-European information service CONCISE (1993) (0)
- Systematics in intensity data: avoidance, correction, detection, and use (1988) (0)
- Refinement of Nb3Si and Nb3As: errata (1978) (0)
- Charge density of determination and extinction correction for a-Al2O3 (1980) (0)
- Xtal3.2: New System Release (1992) (0)
- Symmetry testing during least-squares refinement (1993) (0)
- The Bayesian viewpoint of statistical procedures in crystallography (1987) (0)
- Spatial sensitivity of some X-ray detectors (1981) (0)
- Errors in absolute-structure determination (1987) (0)
- An electron density study of TiC (1981) (0)
- Short-range order, thermal vibration and expansion, and other properties of pseudosymmetric and mixed crystals of small organic molecules - Calculation of dimensions of ordered regions in triclinic and monoclinic pseudosymmetic crystals from the intensity of diffuse scattering (1970) (0)
- Data and Refinement Software (1990) (0)
- Origin-Defining Restraints in Polar Space Groups (1987) (0)
- (Z)-2-METHOXY-1,2-DIPHENYLVINYL ALCOHOL. A REMARKABLY STABLE ENOL (1983) (0)
- Xtal 3.2: A Crystallographic Software System (1993) (0)
- Absolute Structure and Absolute Configuration (2000) (0)
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