Molecular salts of the isoniazid derivatives. Expanding the scope of sulfonate-pyridinium synthon to design materials

2021 ◽  
pp. 122762
Author(s):  
Arshid A. Ganie ◽  
Rajendiran Marimuthu ◽  
Shaikh T. Islam ◽  
Shikha Narang ◽  
Aijaz A. Dar
Author(s):  
Clarence Rebello ◽  
Ted Kolasa ◽  
Parag Modi

Abstract During the search for the root cause of a board level failure, all aspects of the product must be revisited and investigated. These aspects encompass design, materials, and workmanship. In this discussion, the failure investigation involved an S-Band Power Amplifier assembly exhibiting abnormally low RF output power where initial troubleshooting did not provide a clear cause of failure. A detailed fault tree drove investigations that narrowed the focus to a few possible root causes. However, as the investigation progressed, multiple contributors were eventually discovered, some that were not initially considered.


Author(s):  
T Surendran ◽  
K Nandini ◽  
R Nagalakshmi ◽  
J Johnsi

2021 ◽  
Author(s):  
Lisa Godsey

This complete guide to the selection of materials for interiors has been updated to reflect the most recent materials on the market and contemporary awareness on industry movements like sustainability. Written from the viewpoint of the working designer, Interior Design Materials and Specifications, 4th Edition, describes each material's characteristics and teaches students how to evaluate, select, and specify materials, taking into account factors including code compliance, building standards, sustainability guidelines, human needs, and bidding processes. Students will learn how to communicate with suppliers and vendors to achieve the results they envision and how to avoid some of the pitfalls common to material selection and specification.


2014 ◽  
Vol 643 ◽  
pp. 328-332
Author(s):  
Zhong Yan Hu ◽  
Zai Hui Cao ◽  
Jin Fa Shi

The semeiology’s effect on the design of the product interface is labored according to the origin of the semeiology. This paper research on Industrial Design Materials with Effect of Symbol on Product Interface Design. From lots of points of view, which are including graph, character, sound, material, color and so on, the semeiology’s effect on the design of the product interface is stated in the article.


2018 ◽  
Vol 74 (12) ◽  
pp. 1891-1894
Author(s):  
Priya Antony ◽  
S. Antony Inglebert ◽  
Jerald V. Ramaclus ◽  
S. John Sundaram ◽  
P. Sagayaraj

The title molecular salts, (C18H23N2)2[CdI4], (I), and C18H23N2 +·C7H7O4S−·H2O, (II), are stilbazole, or 4-styrylpyridine, derivatives. The cation, (E)-4-[4-(diethylamino)styryl]-1-methylpyridin-1-ium, has a methyl group attached to pyridine ring and a diethyl amine group attached to the benzene ring. The asymmetric unit of salt (I), comprises one cationic molecule and half a CdI4 dianion. The Cd atom is situated on a twofold rotation axis and has a slightly distorted tetrahedral coordination sphere. In (II), the anion consists of a 4-methoxybenzenesulfonate and it crystallizes as a monohydrate. In both salts, the cations adopt an E configuration with respect to the C=C bond and the pyridine and benzene rings are inclined to each other by 10.7 (4)° in (I) and 4.6 (2)° in (II). In the crystals of both salts, the packing is consolidated by offset π–π stacking interactions involving the pyridinium and benzene rings, with centroid–centroid distances of 3.627 (4) Å in (I) and 3.614 (3) Å in (II). In the crystal of (II), a pair of 4-methoxybenzenesulfonate anions are bridged by Owater—H...Osulfonate hydrogen bonds, forming loops with an R 2 4(8) motif. These four-membered units are then linked to the cations by a number of C—H...O hydrogen bonds, forming slabs lying parallel to the ab plane.


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