Kukolich Laboratory: Electronics, Inorganic Synthesis & Scientific Glassblowing

Daniel A. Sánchez

04/17/10

NASA Space Grant: University of Arizona Chemistry Department

Project Overview

• 3 Projects

• Project #1

• Part 1: Motor Circuit

• Part 2: Pulse Box

• Project #2- Synthesis of Trochrocene

• Project #3 Scientific Glassblowing

Microwave Spectroscopy

• Microwave Spectroscopy studies the structure of organic and inorganic compounds.

• Why is this important?• Determines bond

lengths and angles and model interactions.

Studied Complexes

Pulsed-Beam Fourier Transform Microwave Spectrometer

Microwave Cavity

Diffusion Pump

10-6 Torr

Fore pump

t=0

General Valve

SCR

Molecules in Ne

+300V

Pico Digital OscilloscopeHP 8673 Microwave Generator

Pulse Sequence

+300V

t~1ms

HP 8673 Microwave Generator

High SpeedMicrowaveSwitch

Pico Digital Oscilloscope

+300V

t`=1ms+10s

Mixer

FID

HP 8673 Microwave Generator Pico Digital Oscilloscope

Project #1: Part 1: Motor Control Circuit

• Objective– To control a DC motor at

12V/1Amp that will run at variable speeds, manually, or by computer.

– Control of mirror movement

– Using the NAND,555, One Shot, and Inverter

Final Design of Control Circuit

When manual is in use computer is locked out and vice versa

Project #1: Part 1: Success!Project #1 Part 1 was a success and currently moves mirrors within the new spectrometer

Project #1: Part 2: Pulse Box construction for Spectrometer #3

• Objective– To build a pulse box that could generate a sequences of pulses.

Circuit Design

Project #1: Part 2: Success

Theoretical Experimental

Project #2: Synthesis of Trochrocene

Braunschweig, Holger; Kupfer, Thomas; Lutz, Matthias; Radacki, Krzysztof. Ansa [1]Trochrocenophanes and Their Related Unstrained 1,1'-Disubstituted Counterparts: Synthesis and Electronic Structure. Journal of the American Chemical Society (2007), 129(28), 8893-8906.

Glassware Project: Cold Finger

Glassware Project: Sample Cell and Mixing System

Neon Gas enters

Sample

Sample + Neon Gas

exits

Sample + Neon Gas

enters

Samples + Neon Gas

exits

Mixing occurs

Neon Enters

Sample

Acknowledgments

• Dr. Kukolich

• Adam Daly

• Laszlo Sarkozy

• Catherine Lavin

• NASA Space Program

• Susan Brew