ChemPen and ChemPen+©化学结构绘制软件
ChemPen and ChemPen+©
Chemical Structure Drawing
for Windows 95,98,NT®
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Introduction
System Requirements
Drawing Example
ChemPen+
Download ChemPen Software
Purchase ChemPen
ChemPen3D -- Molecular Mechanics
NMRPen -- NMR Shift Prediction
FREE Java C-13 NMR Shifts Applet
Named Organic Reactions Web Page
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INTRODUCTION
ChemPen is the easy to use and inexpensive tool for chemists, educators and students who need to create create drawings for chemical documentation. ChemPen+ includes everything in ChemPen plus basic C-13 chemical shift prediction.Drawing with ChemPen is done with menus, mouse clicks and simple editors. Drawings can be pasted into Windows® graphics applications. ChemPen calculates molecular weight, molecular formula and elemental composition.
Watch the animation below or click the drawing to see how easy it was created with ChemPen.
A Drawing Example Animation
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ChemPen+ adds C-13 NMR Shift prediction to ChemPen. If you use C-13 NMR to analyze organic molecules you will appreciate ChemPen+. ChemPen+ uses NMRPenLite©, the same powerful shift prediction module as NMRPen©. NMRPenLite differs from the more powerful NMRPen as follows:
1. ChemPen+'s database has about 1100 entries compared to NMRPen's more than 73000.
2. The user cannot add or remove shifts from the ChemPen+ database.
3. ChemPen+ handles molecules containing N, O, F, Cl, Br, I, S, P, Si.
4. ChemPen+ does not handle organometallic compounds.
5. NMRPen is based on ChemPen3D
Despite these small limitations, ChemPen+ is still powerful. ChemPen+ can estimate the chemical shifts of literally millions of organic compounds. A few examples follow.
Ex.1 Building Block Molecules
Ex.2 Polychorinated Benzenes
Ex.3 Branched hydrocarbons
Ex.4 Chlorinated hydrocarbons
Ex.5 Equilibrating tautomers
Ex.6 Acid-Base Equilibration
Ex.7 A Xanthene Molecule
References
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SYSTEM REQUIREMENTS
ChemPen is small but powerful. The minimum recommended system is a 486SX, Windows 95, 8MB RAM, 4MB Free HDD.
Download 30 Day Trial Of ChemPen Software
These 30 day trial versions of ChemPen, ChemPen+ and ChemPen3D are fully functional. Each time you run a locked version ChemPen Software you are prompted for an unlock code. A valid unlock code eliminates the 30 day limitation. For an unlock code you must purchase ChemPen.
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ChemPen (Zip 1209KB) Build 05152000 ChemPen+ (ZIP 1236KB) Build 05152000 ChemPen3D (ZIP 1261KB) Build 05152000 ChemPen (Self extracting Zip 1238KB) Build 05152000 ChemPen+ (Self extracting ZIP 1291KB) Build 05152000 ChemPen3D (Self extracting ZIP 1313KB) Build 05152000
Chemical Structure Drawing
for Windows 95,98,NT®
--------------------------------------------------------------------------------
Introduction
System Requirements
Drawing Example
ChemPen+
Download ChemPen Software
Purchase ChemPen
ChemPen3D -- Molecular Mechanics
NMRPen -- NMR Shift Prediction
FREE Java C-13 NMR Shifts Applet
Named Organic Reactions Web Page
--------------------------------------------------------------------------------
INTRODUCTION
ChemPen is the easy to use and inexpensive tool for chemists, educators and students who need to create create drawings for chemical documentation. ChemPen+ includes everything in ChemPen plus basic C-13 chemical shift prediction.Drawing with ChemPen is done with menus, mouse clicks and simple editors. Drawings can be pasted into Windows® graphics applications. ChemPen calculates molecular weight, molecular formula and elemental composition.
Watch the animation below or click the drawing to see how easy it was created with ChemPen.
A Drawing Example Animation
--------------------------------------------------------------------------------
ChemPen+ adds C-13 NMR Shift prediction to ChemPen. If you use C-13 NMR to analyze organic molecules you will appreciate ChemPen+. ChemPen+ uses NMRPenLite©, the same powerful shift prediction module as NMRPen©. NMRPenLite differs from the more powerful NMRPen as follows:
1. ChemPen+'s database has about 1100 entries compared to NMRPen's more than 73000.
2. The user cannot add or remove shifts from the ChemPen+ database.
3. ChemPen+ handles molecules containing N, O, F, Cl, Br, I, S, P, Si.
4. ChemPen+ does not handle organometallic compounds.
5. NMRPen is based on ChemPen3D
Despite these small limitations, ChemPen+ is still powerful. ChemPen+ can estimate the chemical shifts of literally millions of organic compounds. A few examples follow.
Ex.1 Building Block Molecules
Ex.2 Polychorinated Benzenes
Ex.3 Branched hydrocarbons
Ex.4 Chlorinated hydrocarbons
Ex.5 Equilibrating tautomers
Ex.6 Acid-Base Equilibration
Ex.7 A Xanthene Molecule
References
--------------------------------------------------------------------------------
SYSTEM REQUIREMENTS
ChemPen is small but powerful. The minimum recommended system is a 486SX, Windows 95, 8MB RAM, 4MB Free HDD.
Download 30 Day Trial Of ChemPen Software
These 30 day trial versions of ChemPen, ChemPen+ and ChemPen3D are fully functional. Each time you run a locked version ChemPen Software you are prompted for an unlock code. A valid unlock code eliminates the 30 day limitation. For an unlock code you must purchase ChemPen.
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