Howard. D. Flack

Howard. D. Flack's AcademicInfluence.com Rankings

Howard. D. Flack

Chemistry

#2483

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#3399

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chemistry Degrees

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Chemistry

Howard. D. Flack's Degrees

PhD Chemistry University of Geneva

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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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What Schools Are Affiliated With Howard. D. Flack?

Howard. D. Flack is affiliated with the following schools:

University of Geneva