|  | Home Molecular Visions Organic Model Kit with Molecular Modeling Handbook | |
|  | |  | | | Molecular Visions Organic Model Kit with Molecular Modeling Handbook | | | | | | | |
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| | Description | * Manufactured by Darling Model Kits, this custom kit was designed by T.W.Graham Solomons.
* The kit consists of Darling's basic Molecular Vision kit with a few additional pieces, so that p orbitals could be shown in molecules like acetylene.
* This customized kit also has pieces that allow linear geometry for the sigma bonds of alkynes while also having orthogonal connections at each atom for the associated p orbitals.
* By attaching balls of the right colors it is possible to show the lobes of the p orbitals that make up the pi bonds in an alkyne.
* Ball colors can be matched symmetrically to show in-phase orbital overlap, or antisymmetrically to show an antibonding state.
* Use of colored balls with the appropriate framework geometry is a very nice feature of the Darling model set.
* Pieces from Darling's inorganic model set and are used for octahedral geometry. | |
| | Product Details | | Author: | T. W. Graham Solomons | | Publisher: | Wiley | | Publication Date: | August 06, 1999 | | Language: | English | | ISBN: | 0471362719 | | Package Length: | 10.3 inches | | Package Width: | 6.6 inches | | Package Height: | 1.5 inches | | Package Weight: | 2.35 pounds | | Average Customer Rating: |  based on 22 reviews |
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| | Customer Reviews | Average Customer Review: ( 22 customer reviews )
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Most Helpful Customer Reviews
25 of 26 found the following review helpful:
Acceptable Kit, but not what was ordered Feb 04, 2007
By Curious by Nature
First off, this is a decent kit. It's small, so it's easy to carry around, but it's small, so there are only so many compounds that can be modeled with it. I bought two to get around this, which is great. The pieces from both kits fit in one box so it doesn't take up any extra space. Very nice.
This is not like some kits where the atoms are, well..., atomic and you connect tubes or sticks to form molecules. With this kit, there are sub-pieces that you use to build each atom depending on what it is. The sub-pieces are labeled sp3, sp2, sp, etc. to indicate how it should be used. It takes a little extra time to build each atom before you build a molecule, but the angles are always correct. Double bonds aren't just two single bonds bent to reach, they are the appropriate angle and shape. This limits the pieces you can use, since they are very specific, so there is a downside to the positive.
Also, the bonds are post and tube. The post fits into the tube. It makes for tight connections and works pretty well, except you have to be careful that every single atom is configured to match the atom on the other side of the bond. If one side is post, the other better be tube. Often times you will need to pull apart what you have just done in order to reverse everything. It can be a serious pain in the butt.
The biggest downside is that the kit I received (Jan. 2007) is the eighth edition kit. It is not what is advertised here, at least when I ordered it and as I write this. The kit I got comes with a cheap cardboard box, NOT a plastic case. The pieces seem bigger than my TA's and it looks like there are less of them. I have not done a side by side comparison though. There are less black pieces in my kit than are in the picture here, that is for sure. The organizer is absent in this version too, so all the pieces just get piled into the cheap cardboard box and you have to sort through to find them. We can use these in exams and it is going to suck to have to dig through an unorganized mess of atom sub-pieces with the clock ticking down. An organizer style plastic case could be purchased separately from any hardware store, but that just adds to the cost and overhead.
All in all, it's an acceptable kit for the price, but what I received is not what is featured here. Very disappointing. I think I'm going to try to sell this and get one of the more expensive sets.
25 of 26 found the following review helpful:
 Great Value and Versatile Jun 01, 2006
By Chem Guy
I have been using these for ~20 years. I have a couple of sets for my own use and recommend them for all the organic courses that I teach. They are very economically priced. More importantly, they are easy to assemble and the plastic is flexible so that you can make strained structures without breaking the models. They are a bit large compared to some other models, but I find this an advantage in many cases. The models really last.
8 of 10 found the following review helpful:
 Not what illustrated in picture Sep 03, 2007
By Andrew L. Thompson
The product was chosen based on the picture and description. It was ultimatly returned because what the picture displayed was NOT was received from the order. It is important to not mislead what the product actually is going to be sent to the customer- the main difference was that no carrying case came with the product- therefore you cannot organize them as other kits allow.
2 of 2 found the following review helpful:
Decent, cheap set! Aug 17, 2011
By Mike
"Hokie"
This set is a simple standard for organic chemistry. It needs a little bit of instruction to use, however.
First, it comes in a plastic bag and a cardboard box for storage. Each tetrahedral atom comes as two pieces that need to be snapped together before use. MAKE SURE THEY SNAP TOGETHER! Otherwise, they will fall apart. Second, Keep the tetrahedron together and store them in the box.
The sigma bonds easily rotate. When you make cyclohexane, this kit will allow you to do a ring-flip without coming apart. You don't get a lot of pieces, but you get enough to make tetralin. I suggest not making cyclobutane or cyclopropane because you will brake the pieces (Way too much bond angle strain!)
2 of 2 found the following review helpful:
Product Not as Pictured Oct 30, 2007
By Robert Perry
"shenandoh"
Be wary. This product was received in a cheap cardboard box and not the plastic green storage case as they once were. The pieces are not arranged according to type for easy retrieval, they are just tossed together in a plastic bag inside the box. Even though the product is still the same functional product that I remember from years ago, I am very disappointed with the way this product was received. It makes it more difficult for myself and my students to learn using the kit. Amazon should change the picture or at the very list add to the description that the product is NOT received as pictured, but will be shipped in a plastic bag inside a reusable cardboard box.
See all 22 customer reviews on Amazon.com
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