ORE
发表于 2025-3-26 20:58:46
Norbert Baumann,Hans-Jürgen Fachmann,Reimund Jotter,Alfons Kubny sind dieselben tragenden Konstruktionen - und doch wird es not wendig sein, für den Architekten eine andere, ihm verständlichere Zu gangsmöglichkeit zu der Materie zu schaffen. Außerdem bietet sie dem Bauingenieur die Möglichkeit, sich mit der Denkweise des Entwerfens von Tragwerken vertraut zu m
浪荡子
发表于 2025-3-27 03:37:27
Dinitrogen Sulfide, SNNyostat at 77 K or in an Ar matrix at 10 to 20 K. The yield of SNN, measured by its IR absorbance relative to that of benzonitrile, critically depends on the contact time in the oven and hence on the oven design .
Obscure
发表于 2025-3-27 08:06:20
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ANTIC
发表于 2025-3-27 12:40:38
Sulfur Amide Hydroxide Derivatives, N,N-Substituted Amino-organyloxy-sulfanesnts of C.H.OH in petroleum ether cooled to 0 .C and stirred vigorously. The mixture is stored for 24 h at room temperature. Then, pyridine hydrochloride is filtered off, and the filtrate is washed with water and dried over CaCl.. The solvent is removed at 25 Torr, and the residue distilled .
外向者
发表于 2025-3-27 15:29:09
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折磨
发表于 2025-3-27 21:29:09
Sulfur Imide and Derivativesle by coordination as a six-electron ligand to two Fe atoms like in Fe.(CO).(μ-S=NH) ; see p. 2. Several quantum-chemical calculations using semiempirical and ab initio approaches have been performed; see Table 1. According to these studies, S=NH has a closed-shell 1.A’ ground state which is 1.02
休闲
发表于 2025-3-28 01:49:23
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Notorious
发表于 2025-3-28 03:17:15
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Ankylo-
发表于 2025-3-28 08:43:13
Thiohydroxylamine and Derivativesned by passing N. through the discharge at 15 mTorr (1.8 Pa) pressure and adding approximately 5 mTorr (0.6 Pa) of H.S below the discharge. HSNH. was identified by its microwave spectrum. Deuterated species of HSNH. could be obtained by the reaction of active nitrogen with D.S .
interpose
发表于 2025-3-28 11:41:19
Thionitrous Acid and Derivatives2]. The compounds were identified by IR spectroscopy . When the mixture was further irradiated with 365-nm light for several hours, the IR absorption of HSNO and HOSN steadily decreased and new IR absorption bands due to .-HNSO appeared in addition to absorption bands belonging to .-HNSO and H