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  • Inorganic Chemistry  (23)
  • EARTH RESOURCES AND REMOTE SENSING  (4)
  • Cyclohexane  (2)
  • Cyclopentene  (2)
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  • 1
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    Satellite snowcover and runoff monitoring in central Arizona (1980)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The author has identified the following significant results. Although the very high resolution experimental LANDSAT imagery permits rapid snow cover mapping at low cost, only one observation is available very 9 days. In contrast, low resolution operational imagery acquired by the ITOS and SMS/GOES satellites provide the daily synoptic observations necessary to monitor the rapid changes in snow covered areas in the entire Salt-Verde watershed. Geometric distortions in meteorological satellite imagery require specialized optical equipment or digital image processing for snow cover mapping.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA. Goddard Space Flight Center Operational Appl. of Satellite Snowcover Observations; p 107-126
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Arizona land use experiment (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Utilization of new sources of statewide remote sensing data, taken from high-altitude aircraft and from spacecraft is discussed along with incorporation of information extracted from these sources into on-going land and resources management programs in Arizona. Statewide cartographic applications of remote sensor data taken by NASA high-altitude aircraft include the development of a statewide semi-analytic control network, the production of nearly 1900 orthophotoquads (image maps) that are coincident in scale and area with the U.S. Geological Survey (USGS) 7. 5 minute topographic quadrangle map series, and satellite image maps of Arizona produced from LANDSAt multispectral scanner imagery. These cartographic products are utilized for a wide variety of experimental and operational earth resources applications. Applications of the imagery, image maps, and derived information discussed include: soils and geologic mapping projects, water resources investigations, land use inventories, environmental impact studies, highway route locations and mapping, vegetation cover mapping, wildlife habitat studies, power plant siting studies, statewide delineation of irrigation cropland, position determination of drilling sites, pictorial geographic bases for thematic mapping, and court exhibits.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: L-4 , NASA. Lyndon B. Johnson Space Center NASA Earth Resources Surv. Symp., Vol. 1-C; p 1553-1572
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Operational applications of satellite snowcover observations and LANDSAT data collection systems operations in central Arizona (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Repetitive LANDSAT and NOAA-4 satellite imagery together with aerial surveys are being evaluated to develop an operational capability for mapping snowcover distributions on the Salt-Verde watershed of central Arizona. Satellite telemetry is also being used for near-real time relay of hydrologic data to aid in the management and operation of reservoirs on the Salt and Verde Rivers. Aerial reconnaissance flights were conducted to collect information on the depth and distribution of snowcover to provide ground truth for use in the analysis of the satellite imagery. A technique for rapid and economical determination of snow depths, using oblique aerial photography of snow markers, was developed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: PAPER-2 , NASA. Goddard Space Flight Center Operational Appl. of Satellite Snowcover Observations; p 13-28
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    NASA TECHNICAL REPORTS
  • 4
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    Applications systems verification and transfer project. Volume 2: Operational applications of satellite snow-cover observations and data-collection systems in the Arizona test site (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Ground surveys and aerial observations were used to monitor rapidly changing moisture conditions in the Salt-Verde watershed. Repetitive satellite snow cover observations greatly reduce the necessity for routine aerial snow reconnaissance flights over the mountains. High resolution, multispectral imagery provided by LANDSAT satellite series enabled rapid and accurate mapping of snow-cover distributions for small- to medium-sized subwatersheds; however, the imagery provided only one observation every 9 days of about a third of the watershed. Low resolution imagery acquired by the ITOSa dn SMS/GOES meteorological satellite series provides the daily synoptic observation necessary to monitor the rapid changes in snow-covered area in the entire watershed. Short term runoff volumes can be predicted from daily sequential snow cover observations.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TP-1823 , NAS 1.60:1823 , REPT-81F0061-VOL-2
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    NASA TECHNICAL REPORTS
  • 5
    Electronic Resource
    Electronic Resource
    Intramolekular stabilisierte galla- und Indacyclohexane, -cyclopentane und -cyclopentene; Rontgenstrukturanalyse von (CH2)5Ga(CH2)3NM
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 466 (1994), S. 5-14 
    Details
    ISSN: 0022-328X
    Keywords: Cyclohexane ; Cyclopentane ; Cyclopentene ; Gallium ; Indium ; Zirconium
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-328X(94)88023-9
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  • 6
    Electronic Resource
    Electronic Resource
    Intramolekular stabilisierte galla- und Indacyclohexane, -cyclopentane und -cyclopentene; Rontgenstrukturanalyse von (CH"2)"5Ga(CH"2)"3NM
    Amsterdam : Elsevier
    Journal of Organometallic Chemistry 466 (1994), S. 5-14 
    Details
    ISSN: 0022-328X
    Keywords: Cyclohexane ; Cyclopentane ; Cyclopentene ; Gallium ; Indium ; Zirconium
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-328X(94)88023-9
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  • 7
    Electronic Resource
    Electronic Resource
    Metallorganische Verbindungen der Lanthanoide. LIII [1].(C5H5Gd)5(μ2-OCH3)4(μ3-OCH3)4(μ5-O) und [Na2(tC4H9OGd)4(μ3-OtC4H9)8(μ6-O)], zwei neue Alkoxigadoliniumcluster mit interstitiellem SauerstoffProfessor Karl-Heinz Thiele zum 60. Geburtstage am 9. März 1990 gewidmet (1990)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 581 (1990), S. 69-81 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organometallic Compounds of the Lanthanides. LIII. (C5H5Gd)5(μ2-OCH3)4(μ3-OCH3)4 (μ5-O) and [Na2(tC4H9OGd)4(μ3-OtC4H9)8(μ6-O)], two New Alkoxi Gadolinium Clusters with Interstitial OxygenGadolinium trichloride reacts in tetrahydrofurane with cyclopentadienyl sodium and two equivalents of sodium methoxide with formation of (C5H5Gd)5(μ2-OCH3)4(μ3-OCH3)4(μ5-O) (1), and with potassium tert-butoxide with formation of [Na2(tC4H9OGd)4(μ3-OtC4H9)8(μ6-O)] (2). The X-ray structure of 1 shows a tetragonal pyramide build up by five gadolinium atoms, containing an oxygen atom in the center of the base and eight bridging methoxo groups. The structure of 2 consists of an oxygen centered octahedron build up by two sodium and four gadolinium atoms, connected by eight bridging tert-butoxy groups and four terminal butoxides. The monoclinic crystals of 1, space group I2/a have the following crystallographic data: a = 2 276.9(5) pm, b = 2 063.1(6) pm, c = 3 152.2(3) pm, β = 90.7(1)°, Z = 12, Dcalcd 1.85 g · cm-3, R = 0.0519. 2 crystallizes tetragonal, space group I4/mmm with a = 1 728.5(4) pm, b = 1 031.0(3) pm, Z = 2, Dcalcd 1.69 g · cm-3, R = 0.0682.
    Notes: Gadoliniumtrichlorid bildet in Tetrahydrofuran mit Cyclopentadienylnatrium und zwei Äquivalenten Natriummethanolat (C5H5Gd)5(μ2-OCH3)4(μ3-OCH3)4(μ5-O) (1), mit Kalium-tert-butanolat kann dagegen [Na2(tC4H9OGd)4(μ3-OtC4H9)8(μ6-O)] (2) isoliert werden. Die Röntgenstrukturanalyse von 1 zeigt eine tetragonale Pyramide aus 5 Gadoliniumatomen mit einem Sauerstoffatom im Zentrum der Basisfläche sowie acht verbrückenden Methanolatgruppen, die von 2 einen aus zwei Natrium- und vier Gadoliniumatomen gebildeten, Sauerstoff-zentrierten Oktaeder mit vier endständigen und acht verbrückenden tert-Butanolat-Einheiten. Die monoklinen Kristalle von 1, Raumgruppe I2/a haben folgende Gitterkonstanten: a = 2 276,9(5) pm, b = 2 063,1(6) pm, c = 3 152,2(3) pm, β = 90,7(1)°, Z = 12, Dber. 1,85 g/cm3, R = 0,0519. 2 kristallisiert tetragonal, Raumgruppe I4/mmm mit a = 1 728,5(4) pm, c = 1 031,0(3) pm, Z = 2, Dber. 1,69 g/cm3, R = 0,0682.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19905810110
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  • 8
    Electronic Resource
    Electronic Resource
    Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 61. Darstellung und Kristallstruktur von Tetramethyltitan-1,2-bis(dimethylphosphino)ethan (1994)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 523-526 
    Details
    ISSN: 0044-2313
    Keywords: Tetramethyltitanium-1,2-bis(dimethylphosphino)-ethane ; NMR data ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Contributions to the Chemistry of Transition Metal Alkyl Compounds. 61. Preparation and Crystal Structure of Tetramethyltitanium-1,2-bis(dimethylphosphino)ethaneThe title complex 1 was synthesized by addition of 1,2-bis(dimethylphosphino)ethane to a solution of tetramethyltitanium in diethylether. The complex was characterized by 1H, 13C and 31P NMR spectra and by X-ray crystal structure analysis. 1 consists of two independent molecules with distorted octahedral structure.
    Notes: Der Titelkomplex 1 wurde durch Addition von 1,2-Bis(dimethylphosphino)ethan an Tetramethyltitan in Diethylether erhalten. Der Komplex wurde 1H-, 13C- und 31P-NMR-spektroskopisch, sowie durch Röntgenkristallstruktur-analyse charakterisiert. 1 tritt in der Elementarzelle in zwei unabhängigen Molekülen mit verzerrt oktaedrischer Konstitution auf.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19946200322
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  • 9
    Electronic Resource
    Electronic Resource
    γ-anti-Effekt an 1-Phosphabicyclo[3.3.1]nonan-Derivaten mit Substituenten am Phosphor. Synthese und Struktur von Pentacarbonyl(1-phosphabicyclo[3.3.1]nonan)chrom (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 610 (1992), S. 127-134 
    Details
    ISSN: 0044-2313
    Keywords: γ-anti effect ; 1-phosphabicyclo 3.3.1 nonane derivatives ; pentacarbonylchromium complex ; structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: γ-Anti Effect in 1-Phosphabicyclo[3.3.1]nonane Derivatives with Substituents at Phosphorus. Synthesis and Structure of Pentacarbonyl(1-phosphabicyclo[3.3.1]nonane) ChromiumIn 1-phosphabicyclo[3.3.1]nonane derivatives of the composition C8H15P(X) the CC-conformation always dominates. Changes in the chemical shifts of the bridge-head carbon atom C(5) in the 13C-NMR spectrum are only originated by the electronic influence of the substituent X at the phosphorus centre. Based on a homogeneous interpretation of the electronic interactions and with regard to Pearsons's definition of electronegativity the electronegativities of substituents at the phosphorus atom X = Cr(CO)5, Fe(CO)4, and Ni(CO)3 are estimated. These groups are placed in antiperiplanar orientation to the carbon atom C(5).The molecular structure of (1-phosphabicyclo[3.3.1]-nonane) Cr(CO)5 3 was elucidated by X-ray diffraction analysis. The molecule features the 1-phosphabicyclononane ligand in the CC-conformation, which has a nearly undistorted Cr(CO)5 unit coordinated to the phosphorus atom (d Cr—P = 2.368(1) Å).
    Notes: Bei 1-Phosphabicyclo[3.3.1]nonan-Derivaten C8H15P(X) dominiert stets die CC-Konformation. Änderungen der chemischen Verschiebung des C(5)-Brückenkopfatoms im 13C-NMR-Spektrum werden alleine durch den elektronischen Einfluß des Substituenten X am Phosphoratom hervorgerufen. Auf der Grundlage einer einheitlichen Interpretation der elektronischen Wechselwirkungen und unter Anwendung des Elektronegativitätsbegriffs von Pearson konnte die Elektronegativität der in antiperiplanarer Position zu C(5) stehenden Phosphorsubstituenten X = Cr(CO)5, Fe(CO)4, Ni(CO)3 abgeschätzt werden.Die Molekülstruktur von (1-Phosphabicyclo[3.3.1]-nonan) Cr(CO)5 (3) wurde mittels Röntgenbeugung ermittelt. Das Molekül zeigt das Bild eines 1-Phosphabicyclo[3.3.1]nonans in der CC-Konformation, an dessen Phosphoratom eine nahezu unverzerrte Cr(CO)5 Einheit (d Cr—P = 2,368(1) Å) koordiniert ist.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926100121
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  • 10
    Electronic Resource
    Electronic Resource
    Organometallphosphin-substituierte Übergangsmetallkomplexe. XXIII. Pentacarbonyl(organometallphosphin)chrom-, -molybdän-und -wolfram-Komplexe (1977)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 430 (1977), S. 51-60 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organometalphosphine Substituted Transition Metal Complexes. XXIII. Pentacarbonyl(organometalphosphine)chromium, Molybdenum, and Tungsten ComplexesHexacarbonyl-chromium, -molybdenum and -tungsten react under u.v. irradiation with tri(tert-butyl)-phosphine, di(tert-butyl)trimethylsilyl-, -germyl- and -stannylphosphine, tert-butylbis(trimethylsilyl-, -germyl- and -stannyl)phosphine as well as with tris(trimethylsilyl-, -germyl- and -stannyl)phosphine with displacement of one CO ligand and formation of the corresponding pentacarbonyl-organometalphosphine chromium, molybdenum and tungsten complexes. The i.r., Raman, 1H n.m.r., and 31P n.m.r. spectra of the complexes are discussed.
    Notes: Hexacarbonyl-chrom, -molybdän und -wolfram reagieren bei UV-Bestrahlung mit Tri(tert-butyl)phosphin, Di(tert-butyl)trimethylsilyl-, -germyl- bzw. -stannylphosphin, tert-Butylbis(trimethylsilyl-, -germyl- bzw. -stannyl)phosphin sowie mit Tris(trimethylsilyl-, -germyl- bzw. -stannyl)phosphin unter Abspaltung eines CO-Liganden und Bildung entsprechender Pentacarbonyl-organometallphosphin-chrom(0)-, -molybdän(0)- und -wolfram(0)-Komplexe. Die Infrarot-, Raman-, 1H-NMR- und 31P-NMR-Spektren werden diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19774300105
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