The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The reaction of NbCl 5 , NaS t Bu, Se and Et 4 NCl in CH 3 CN in a 1:6:1:1.6 molar ratio affords crystalline (Et 4 N) 2 [Nb(Se) 3 (S t Bu)], 1. The same salt is obtained in about 25% yield by the oxidation of [Nb(S)(S t Bu) 4 ] - with 1 equiv. of Se. Oxidation of 1, or its Ph 4 P + analog with...
The optical properties of Synechococcus (clone WH8103) were examined in a nutrient-replete laboratory culture. Measurements of the spectral absorption and beam attenuation coefficients, the size distribution of cells in suspension, and microscopic analysis of samples were made at intervals of 2-4 hours for 2 days. These measurements were used to calculate the optical properties at the level of a...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.