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306 research data, page 1 of 31

Novel Seven Coordination Geometry of Sn(IV):  Crystal Structures of Phthalocyaninato Bis(undecylcarboxylato)Sn(IV), Its Si(IV) Analogue, and Phthalocyaninato Bis(chloro)silicon(IV). The Electrochemistry of the Si(IV) Analogue and Related Compounds

Three newly elucidated crystal structures of group IV phthalocyaninato complexes are reported, along with data for two further SiPc carboxylate complexes. In one of these crystal structures, bis(undecylcarboxylate)Sn(IV) phthalocyanine, the tin ion is seven coordinate, which is a unique finding for this atom in phthalocyanine ring coordination. Comparison of these structures with other group IV phthalocyaninato and related structures reveals differences, illustrating features sign...

On the centipedes (Chilopoda) of the Republic of Macedonia

plazi (2001)
Publisher: Plazi.org taxonomic treatments database
This dataset contains the digitized treatments in Plazi based on the original journal article Pavel Stoev (2001): On the centipedes (Chilopoda) of the Republic of Macedonia. Historia naturalis bulgarica 13: 93-107, URL: http://un.availab.le

Natality Detail File, 1987: [United States]

United States Department of Health and Human Services. National Center for Health Statistics (2001)
Publisher: ICPSR - Interuniversity Consortium for Political and Social Research
This collection provides information on live births in the United States during calendar year 1987. The natality data in this file are a component of the vital statistics collection effort maintained by the federal government. Geographic variables of residence for births include the state, county, city, population, division and state subcode, Standard Metropolitan Statistical Area (SMSA), and metropolitan/nonmetropolitan county. Other variables include the race and sex of the child, the age o...

Cylindrical vector beam focusing through a dielectric interface

D. P. Biss; Brown, T G (2001)
Publisher: Figshare
Cylindrical vector beams have been proposed and demonstrated for applications ranging from microscopy to high energy physics. In this paper, we analyze the three-dimensional field distributions of radial and azimuthal beams focused near a dielectric interface. We give particular attention to the classic problem of high numerical aperture focusing from an immersion lens to a glass-air interface and find that the use of radially and azimuthally polarized illumination for this type of imaging pr...

Patientensouveränität : der autonome Patient im Mittelpunkt

In Anbetracht des wachsenden finanziellen Drucks auf die sozialen Sicherungssysteme drängt sich immer stärker die Frage auf, ob sich in Zukunft die Errungenschaften der modernen Medizin im Rahmen einer allgemeinen Gesundheitsversorgung bei weitgehend stabilen Beitragssätzen zur gesetzlichen Krankenversicherung (GKV) überhaupt noch finanzieren lassen. Die in den inzwischen zahlreich vorliegenden Untersuchungen formulierten Vorschläge für Maßnahmen zur Weiterentwicklung des Gesundheitssystems z...

Constitution of Grignard Reagent RMgCl in Tetrahydrofuran

The constitution of Grignard reagent, RMgCl (R = Me, tBu, Ph or benzyl), was investigated in the solid state by means of X-ray crystallography and in THF by coldspray ionization mass spectrometry (CSI-MS). Three types of crystal structures, (a) [Mg2(μ-Cl3)(THF)6]+·[RMgCl2(THF)]-, (b) R2Mg4Cl6(THF)6, and (c) [2Mg2(μ-Cl3)(THF)6]+·[R4Mg2Cl2]2-, were identified, and MeMg2(μ-Cl3)(THF)4-6 were detected as major species of MeMgCl in solution.