Search results for "Organic phosphorus"

showing 3 items of 3 documents

Phosphororganische Verbindungen, 65. Die selektive Abspaltung von Allylgruppen aus Allylphosphonium‐, ‐arsonium‐ und ‐sulfoniumsalzen und aus Allylsu…

1970

KCN spaltet Allylphosphonium-, -arsonium- und -sulfoniumsalze in Methacrylnitril und tertiare Phosphine, tertiare Arsine und Thioather auf. Durch alternierende Cyanolyse und Quartarisierung konnen Phosphonium- und Arsoniumsalze mit vier verschiedenen Liganden aufgebaut werden. Allylammoniumsalze, Allylphosphinoxide und -phosphonsaureester konnen nicht gespalten werden. Dagegen liefern Allylsulfone mit KCN in guten Ausbeuten Methacrylnitril und Sulfinsauren. Organic Phosphorus Compounds, 65. The Selective Elimination of Allyl Groups from Allylphosphonium, -arsonium and -sulfonium Salts and from Allyl sulfones by Cyanolysis KCN cleaves allylphosphonium, -arsonium, and -sulfonium salts to give…

Inorganic Chemistrychemistry.chemical_classificationchemistry.chemical_compoundArsinechemistryMethacrylonitrileSulfoniumOrganic chemistryOrganic phosphorusPhosphoniumSulfinic acidMedicinal chemistryPhosphineChemische Berichte
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Phosphororganische Verbindungen, 68. Darstellung und Eigenschaften von Tetrakis(diphenylphosphin)‐nickel(0)

1971

Die Titelsubstanz 1 wurde durch Einwirkung von Diphenylphosphin auf Bis-π-allyl-nickel, Tetrakis(triphenylphosphin)-nickel(0) (2), Nickelpulver oder Nickel(II)-bromid dargestellt. Ihre Struktur wurde durch Zerewitinoff-Bestimmung, IR- und NMR-Spektren abgesichert. Eine Alkylierung von metalliertem 1 gelang nicht. Organic Phosphorus Compounds, 68. Preparation and Properties of Tetrakis(diphenylphosphine)nickel(0) The title compound, 1, was prepared by reacting of diphenylphosphine with bis(π-allyl)nickel, tetrakis(triphenylphosphine)nickel(0) (2), nickel-powder, or nickel(II) bromide. The structure of 1 was elucidated by Zerewitinoff method, i. r. and n. m. r. spectra. The alkylation of meta…

inorganic chemicalsInorganic Chemistrychemistry.chemical_compoundNickelDiphenylphosphinechemistryBromidePolymer chemistryotorhinolaryngologic diseasesOrganic phosphoruschemistry.chemical_elementAlkylationTriphenylphosphineChemische Berichte
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KOSMOS 2017 Peru Side Experiment: nutrients, phytoplankton abundances, enzyme rates, photophysiology

2022

This data was collected during an short-term incubation experiment in March 2017 that investigated the response of a surface plankton community to upwelling. This experiment was carried in the framework of the SFB754-funded KOSMOS mesocosm study that took place in La Punta, Callao, Peru between February-April 2017. A total of six different treatments were used to disentangle chemical and biological characteristics of deep water that influence surface plankton blooms: 2 different deep water sources with different nutrient concentrations; 3 treatments to distinguish the effects of inorganic nutrients, organic nutrients and deep water microbial populations. Measured variables include inorganic…

ratioDay of experimentSFB754colored dissolved organic matter at 325 nmNitriteChlorophyll aAbsorption coefficient colored dissolved organic matter at 254 nmClimate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)colorimetric determinationFluorometerFluorometricNitrateNanoplanktonPhytoplankton cells phycocyanin-containing (FL-4)PicoeukaryotesFluorometer fast repetition rateCalculatedFlow cytometryNutrient consumption ratioforward scatterSynechococcusupwelling systemsMesocosm experimentSpectrophotometricClimate Biogeochemistry Interactions in the Tropical Ocean SFB754SilicateBiogeochemistryBiospheric SciencesMaximum photochemical quantum yield of photosystem IIenzyme activitycell sizeDissolved inorganic nitrogen/dissolved inorganic phosphorus ratioKOSMOS_2017chainsAbsorption coefficient colored dissolved organic matter 250 nm/365 nm ratioeastern tropical South Pacific OceanKOSMOSExcess phosphateAbsorption coefficient colored dissolved organic matter at 325 nmNatural SciencesGeosciencescolored dissolved organic matter at 254 nmphycocyanin containing FL 4Absorption coefficientPhosphateTank numberPhytoplankton cells chainsNetwork of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the ArctReplicatenutrientsfast repetition rateDATE TIMECryptophytesMicrophytoplanktonPhytoplankton cellsLeucine aminopeptidase activityDissolved inorganic nitrogen dissolved inorganic phosphorus ratiofungiEnzymatic assayContinuous flow analyserTreatmentDATE/TIMEcolored dissolved organic matter 250 nm 365 nmPhytoplanktonPhytoplankton cell size forward scatterNetwork of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean (AQUACOSM)CDOMContinuous flow analyser colorimetric determinationNitrate and Nitrite
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