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No hay artículos en el carroLa plantilla permite el estudio de los diversos aspectos educativos enumerados a continuación: 1- Estructuras de línea de unión 2- Isomerismo geométrico de doble enlace carbono-carbono y ciclos pequeños 3- Proyecciones Newman (conformadores e isómeros ópticos) 4- Estructuras Sawhorse (conformadores e isómeros ópticos) 5- Estructuras tridimensionales (Wedge/Dash) 6- Conformaciones de ciclohexano, oses y oses ides 7- Fischer proyecciones 8- fórmula Haworth
Stephan Erbrich
Comentado en Alemania el 16 de junio de 2024
+ nützlich, Formelzeichnen geht nun sauberer und flotter als aus der frein Hand
Ricardo
Comentado en México el 7 de octubre de 2024
N/a
María F.
Comentado en México el 12 de diciembre de 2023
Una buenísima opción para realizar tareas
Luis
Comentado en México el 4 de noviembre de 2023
justo lo que se describe
Raffaella
Comentado en Italia el 28 de septiembre de 2023
Lo stencil è ben fatto sebbene un po' costoso
Carolina
Comentado en México el 7 de noviembre de 2022
Muy buen producto, muchas gracias
Eduardo Miguez Silva
Comentado en Brasil el 17 de agosto de 2020
É um bom gabarito. Atende as necessidades básicas do desenho de estruturas. Bom para ter na contracapa do caderno de laboratório para ilustrar as anotações.
Donna
Comentado en el Reino Unido el 22 de septiembre de 2018
Great
William Bosch
Comentado en los Estados Unidos el 11 de noviembre de 2016
When you have as big a gap between your drawing skills and desired chemical perfectionism as I do, you don't get far free-handing structures before succumbing to shame and spite for hexagons. This stencil lets you pump structures out perfectly (which it turns out feels pretty good) and is easy and relatively quick to use once you get a slight hang of the faster ways to chain its elements together. Thanks to this stencil, through both the sketching process and the perfect finished product, I found myself much more able to commit structures drawn only once to long-term memory, my mind liberated from the need to actively "correct" my free-hand drawings, or visualize them without their incongruities while suppressing personal frustration at a putatively simple geometric task. This stencil slides neatly into the pocket of any binder, folder, divider, et cetera, it's as portable as the paper you'll be using it on.As far as features that could be improved on (or compensated for by customers with other stencils), I do wish it included a handful of the most common elements' letters/symbols, so I could for example incorporate a nitrogen atom without the N looking inferior to the rest of the immaculate molecule. It would also be nice if the plastic was slightly more transparent, since you're often depending on seeing through it without the benefit of a hole (or enough of them) to align it just right when making a benzene/phenyl group, for example. Not that those are dealbreakers, it's still perfectly usable and you'll only feel slowed down if you're going nuts on perfectionism, it would just make it easier in less-than-perfect light conditions.Anyways, I'd recommend this to a friend and my classmates have enjoyed borrowing mine.
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